1513131755 has 16 divisors (see below), whose sum is σ = 1828462944. Its totient is φ = 1202065920.

The previous prime is 1513131743. The next prime is 1513131817. The reversal of 1513131755 is 5571313151.

It is not a de Polignac number, because 1513131755 - 2¹² = 1513127659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476804 + ... + 479966.

It is an arithmetic number, because the mean of its divisors is an integer number (114278934).

Almost surely, 2^1513131755 is an apocalyptic number.

1513131755 is a deficient number, since it is larger than the sum of its proper divisors (315331189).

1513131755 is a wasteful number, since it uses less digits than its factorization.

1513131755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806.

The product of its digits is 7875, while the sum is 32.

The square root of 1513131755 is about 38898.9942672044. The cubic root of 1513131755 is about 1148.0450098598.

The spelling of 1513131755 in words is "one billion, five hundred thirteen million, one hundred thirty-one thousand, seven hundred fifty-five".