135931528 has 24 divisors (see below), whose sum is σ = 263373390. Its totient is φ = 65769600.

The previous prime is 135931519. The next prime is 135931547. The reversal of 135931528 is 825139531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 125933284 + 9998244 = 11222^2 + 3162^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1153 + ... + 16528.

Almost surely, 2^135931528 is an apocalyptic number.

It is an amenable number.

135931528 is a deficient number, since it is larger than the sum of its proper divisors (127441862).

135931528 is a wasteful number, since it uses less digits than its factorization.

135931528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17749 (or 17714 counting only the distinct ones).

The product of its digits is 32400, while the sum is 37.

The square root of 135931528 is about 11658.9677073058. The cubic root of 135931528 is about 514.1699993334.

The spelling of 135931528 in words is "one hundred thirty-five million, nine hundred thirty-one thousand, five hundred twenty-eight".