1255010140 has 24 divisors (see below), whose sum is σ = 2641489200. Its totient is φ = 500867328.

The previous prime is 1255010131. The next prime is 1255010147. The reversal of 1255010140 is 410105521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255010147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61965 + ... + 79684.

It is an arithmetic number, because the mean of its divisors is an integer number (110062050).

Almost surely, 2^1255010140 is an apocalyptic number.

1255010140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255010140 is an abundant number, since it is smaller than the sum of its proper divisors (1386479060).

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

1255010140 is a wasteful number, since it uses less digits than its factorization.

1255010140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142101 (or 142099 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1255010140 is about 35426.1222828579. The cubic root of 1255010140 is about 1078.6546290468.

Adding to 1255010140 its reverse (410105521), we get a palindrome (1665115661).

The spelling of 1255010140 in words is "one billion, two hundred fifty-five million, ten thousand, one hundred forty".