1315513129 has 16 divisors (see below), whose sum is σ = 1594540800. Its totient is φ = 1060868160.

The previous prime is 1315513123. The next prime is 1315513139. The reversal of 1315513129 is 9213155131.

It is a cyclic number.

It is not a de Polignac number, because 1315513129 - 2²¹ = 1313415977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315513129.

It is not an unprimeable number, because it can be changed into a prime (1315513123) 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, 57154 + ... + 76795.

It is an arithmetic number, because the mean of its divisors is an integer number (99658800).

Almost surely, 2^1315513129 is an apocalyptic number.

It is an amenable number.

1315513129 is a deficient number, since it is larger than the sum of its proper divisors (279027671).

1315513129 is a wasteful number, since it uses less digits than its factorization.

1315513129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134040.

The product of its digits is 4050, while the sum is 31.

The square root of 1315513129 is about 36270.0031568788. The cubic root of 1315513129 is about 1095.7169894702.

The spelling of 1315513129 in words is "one billion, three hundred fifteen million, five hundred thirteen thousand, one hundred twenty-nine".