1255514144 has 24 divisors (see below), whose sum is σ = 2483521488. Its totient is φ = 624778560.

The previous prime is 1255514137. The next prime is 1255514201. The reversal of 1255514144 is 4414155521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1255514144.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86222 + ... + 99725.

It is an arithmetic number, because the mean of its divisors is an integer number (103480062).

Almost surely, 2^1255514144 is an apocalyptic number.

It is an amenable number.

1255514144 is a deficient number, since it is larger than the sum of its proper divisors (1228007344).

1255514144 is a wasteful number, since it uses less digits than its factorization.

1255514144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186168 (or 186160 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 1255514144 is about 35433.2350202462. The cubic root of 1255514144 is about 1078.7990033090.

Adding to 1255514144 its reverse (4414155521), we get a palindrome (5669669665).

The spelling of 1255514144 in words is "one billion, two hundred fifty-five million, five hundred fourteen thousand, one hundred forty-four".