135931516 has 48 divisors (see below), whose sum is σ = 279417600. Its totient is φ = 56659968.

The previous prime is 135931511. The next prime is 135931517. The reversal of 135931516 is 615139531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135931511) 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, 176380 + ... + 177148.

It is an arithmetic number, because the mean of its divisors is an integer number (5821200).

Almost surely, 2^135931516 is an apocalyptic number.

It is an amenable number.

135931516 is an abundant number, since it is smaller than the sum of its proper divisors (143486084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135931516 is a wasteful number, since it uses less digits than its factorization.

135931516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 944 counting only the distinct ones).

The product of its digits is 12150, while the sum is 34.

The square root of 135931516 is about 11658.9671926805. The cubic root of 135931516 is about 514.1699842031.

The spelling of 135931516 in words is "one hundred thirty-five million, nine hundred thirty-one thousand, five hundred sixteen".