1251513352 has 16 divisors (see below), whose sum is σ = 2448613440. Its totient is φ = 598549776.

The previous prime is 1251513349. The next prime is 1251513401. The reversal of 1251513352 is 2533151521.

It is a super-3 number, since 3×1251513352³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1251513352.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400668 + ... + 3401035.

It is an arithmetic number, because the mean of its divisors is an integer number (153038340).

Almost surely, 2^1251513352 is an apocalyptic number.

It is an amenable number.

1251513352 is a deficient number, since it is larger than the sum of its proper divisors (1197100088).

1251513352 is a wasteful number, since it uses less digits than its factorization.

1251513352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6801732 (or 6801728 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 1251513352 is about 35376.7346147154. The cubic root of 1251513352 is about 1077.6518921033.

Adding to 1251513352 its reverse (2533151521), we get a palindrome (3784664873).

The spelling of 1251513352 in words is "one billion, two hundred fifty-one million, five hundred thirteen thousand, three hundred fifty-two".