36509139 has 12 divisors (see below), whose sum is σ = 53404000. Its totient is φ = 24030864.

The previous prime is 36509131. The next prime is 36509153. The reversal of 36509139 is 93190563.

36509139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 36509139 - 2³ = 36509131 is a prime.

It is a super-3 number, since 3×36509139³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (36509131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24964 + ... + 26385.

Almost surely, 2^36509139 is an apocalyptic number.

36509139 is a deficient number, since it is larger than the sum of its proper divisors (16894861).

36509139 is a wasteful number, since it uses less digits than its factorization.

36509139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51434 (or 51431 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 36509139 is about 6042.2792884805. The cubic root of 36509139 is about 331.7420548083.

The spelling of 36509139 in words is "thirty-six million, five hundred nine thousand, one hundred thirty-nine".