1255343232 has 128 divisors (see below), whose sum is σ = 3917632320. Its totient is φ = 351129600.

The previous prime is 1255343227. The next prime is 1255343237. The reversal of 1255343232 is 2323435521.

It is an interprime number because it is at equal distance from previous prime (1255343227) and next prime (1255343237).

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1255343232.

It is not an unprimeable number, because it can be changed into a prime (1255343237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43482 + ... + 66342.

Almost surely, 2^1255343232 is an apocalyptic number.

1255343232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255343232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1958816160).

1255343232 is an abundant number, since it is smaller than the sum of its proper divisors (2662289088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255343232 is a wasteful number, since it uses less digits than its factorization.

1255343232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22902 (or 22890 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 1255343232 is about 35430.8231911143. The cubic root of 1255343232 is about 1078.7500491114.

Adding to 1255343232 its reverse (2323435521), we get a palindrome (3578778753).

The spelling of 1255343232 in words is "one billion, two hundred fifty-five million, three hundred forty-three thousand, two hundred thirty-two".