135972232 has 16 divisors (see below), whose sum is σ = 278125200. Its totient is φ = 61805520.

The previous prime is 135972229. The next prime is 135972241. The reversal of 135972232 is 232279531.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772482 + ... + 772657.

It is an arithmetic number, because the mean of its divisors is an integer number (17382825).

Almost surely, 2^135972232 is an apocalyptic number.

It is an amenable number.

135972232 is an abundant number, since it is smaller than the sum of its proper divisors (142152968).

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

135972232 is a wasteful number, since it uses less digits than its factorization.

135972232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545156 (or 1545152 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 135972232 is about 11660.7131857361. The cubic root of 135972232 is about 514.2213160693.

The spelling of 135972232 in words is "one hundred thirty-five million, nine hundred seventy-two thousand, two hundred thirty-two".