36113391 has 16 divisors (see below), whose sum is σ = 54056800. Its totient is φ = 23825664.

The previous prime is 36113387. The next prime is 36113393. The reversal of 36113391 is 19331163.

It is not a de Polignac number, because 36113391 - 2² = 36113387 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 (36113393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4276 + ... + 9513.

It is an arithmetic number, because the mean of its divisors is an integer number (3378550).

Almost surely, 2^36113391 is an apocalyptic number.

36113391 is a deficient number, since it is larger than the sum of its proper divisors (17943409).

36113391 is a wasteful number, since it uses less digits than its factorization.

36113391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13895 (or 13889 counting only the distinct ones).

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

The square root of 36113391 is about 6009.4418210013. The cubic root of 36113391 is about 330.5390363904.

The spelling of 36113391 in words is "thirty-six million, one hundred thirteen thousand, three hundred ninety-one".