36139528 has 32 divisors (see below), whose sum is σ = 70479360. Its totient is φ = 17357760.

The previous prime is 36139513. The next prime is 36139529. The reversal of 36139528 is 82593163.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (36139529) 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, 23833 + ... + 25303.

It is an arithmetic number, because the mean of its divisors is an integer number (2202480).

Almost surely, 2^36139528 is an apocalyptic number.

It is an amenable number.

36139528 is a deficient number, since it is larger than the sum of its proper divisors (34339832).

36139528 is a wasteful number, since it uses less digits than its factorization.

36139528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597 (or 1593 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 36139528 is about 6011.6160888733. The cubic root of 36139528 is about 330.6187594993.

The spelling of 36139528 in words is "thirty-six million, one hundred thirty-nine thousand, five hundred twenty-eight".