135431513 has 8 divisors (see below), whose sum is σ = 154856832. Its totient is φ = 116025696.

The previous prime is 135431509. The next prime is 135431531. The reversal of 135431513 is 315134531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135431513 - 2² = 135431509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135431113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15956 + ... + 22922.

It is an arithmetic number, because the mean of its divisors is an integer number (19357104).

Almost surely, 2^135431513 is an apocalyptic number.

It is an amenable number.

135431513 is a deficient number, since it is larger than the sum of its proper divisors (19425319).

135431513 is an equidigital number, since it uses as much as digits as its factorization.

135431513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9751.

The product of its digits is 2700, while the sum is 26.

The square root of 135431513 is about 11637.5045864653. The cubic root of 135431513 is about 513.5387781233.

The spelling of 135431513 in words is "one hundred thirty-five million, four hundred thirty-one thousand, five hundred thirteen".