1015251264 has 42 divisors (see below), whose sum is σ = 2910036090. Its totient is φ = 338416896.

The previous prime is 1015251253. The next prime is 1015251319. The reversal of 1015251264 is 4621525101.

1015251264 is a `hidden beast` number, since 10 + 1 + 525 + 126 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 655769664 + 359481600 = 25608^2 + 18960^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 880719 + ... + 881870.

Almost surely, 2^1015251264 is an apocalyptic number.

It is an amenable number.

1015251264 is an abundant number, since it is smaller than the sum of its proper divisors (1894784826).

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

1015251264 is a wasteful number, since it uses less digits than its factorization.

1015251264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762607 (or 1762594 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1015251264 is about 31863.0077676292. The cubic root of 1015251264 is about 1005.0581268823.

Adding to 1015251264 its reverse (4621525101), we get a palindrome (5636776365).

It can be divided in two parts, 10152 and 51264, that added together give a palindrome (61416).

The spelling of 1015251264 in words is "one billion, fifteen million, two hundred fifty-one thousand, two hundred sixty-four".