136538524 has 12 divisors (see below), whose sum is σ = 239375304. Its totient is φ = 68145584.

The previous prime is 136538513. The next prime is 136538531. The reversal of 136538524 is 425835631.

It is a congruent number.

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, 28414 + ... + 32869.

It is an arithmetic number, because the mean of its divisors is an integer number (19947942).

Almost surely, 2^136538524 is an apocalyptic number.

It is an amenable number.

136538524 is a deficient number, since it is larger than the sum of its proper divisors (102836780).

136538524 is a wasteful number, since it uses less digits than its factorization.

136538524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61844 (or 61842 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 136538524 is about 11684.9700042405. The cubic root of 136538524 is about 514.9341971413.

The spelling of 136538524 in words is "one hundred thirty-six million, five hundred thirty-eight thousand, five hundred twenty-four".