36139311 has 32 divisors (see below), whose sum is σ = 60704000. Its totient is φ = 21065184.

The previous prime is 36139309. The next prime is 36139319. The reversal of 36139311 is 11393163.

It is not a de Polignac number, because 36139311 - 2¹ = 36139309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36139319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3960 + ... + 9378.

It is an arithmetic number, because the mean of its divisors is an integer number (1897000).

Almost surely, 2^36139311 is an apocalyptic number.

36139311 is a deficient number, since it is larger than the sum of its proper divisors (24564689).

36139311 is a wasteful number, since it uses less digits than its factorization.

36139311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460 (or 5454 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 36139311 is about 6011.5980404548. The cubic root of 36139311 is about 330.6180977639.

The spelling of 36139311 in words is "thirty-six million, one hundred thirty-nine thousand, three hundred eleven".