1315202551 has 16 divisors (see below), whose sum is σ = 1481816448. Its totient is φ = 1159200000.

The previous prime is 1315202521. The next prime is 1315202617. The reversal of 1315202551 is 1552025131.

It is a cyclic number.

It is not a de Polignac number, because 1315202551 - 2⁷ = 1315202423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315202521) 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, 1200 + ... + 51301.

It is an arithmetic number, because the mean of its divisors is an integer number (92613528).

Almost surely, 2^1315202551 is an apocalyptic number.

1315202551 is a deficient number, since it is larger than the sum of its proper divisors (166613897).

1315202551 is a wasteful number, since it uses less digits than its factorization.

1315202551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52602.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1315202551 is about 36265.7214322285. The cubic root of 1315202551 is about 1095.6307538237.

Adding to 1315202551 its reverse (1552025131), we get a palindrome (2867227682).

The spelling of 1315202551 in words is "one billion, three hundred fifteen million, two hundred two thousand, five hundred fifty-one".