36139856 has 10 divisors (see below), whose sum is σ = 70021002. Its totient is φ = 18069920.

The previous prime is 36139849. The next prime is 36139879. The reversal of 36139856 is 65893163.

It can be written as a sum of positive squares in only one way, i.e., 35760400 + 379456 = 5980^2 + 616^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1129355 + ... + 1129386.

Almost surely, 2^36139856 is an apocalyptic number.

It is an amenable number.

36139856 is a deficient number, since it is larger than the sum of its proper divisors (33881146).

36139856 is a wasteful number, since it uses less digits than its factorization.

36139856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258749 (or 2258743 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 36139856 is about 6011.6433693292. The cubic root of 36139856 is about 330.6197597210.

The spelling of 36139856 in words is "thirty-six million, one hundred thirty-nine thousand, eight hundred fifty-six".