36158631 has 4 divisors (see below), whose sum is σ = 48211512. Its totient is φ = 24105752.

The previous prime is 36158623. The next prime is 36158641. The reversal of 36158631 is 13685163.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36158631 - 2³ = 36158623 is a prime.

It is a super-2 number, since 2×36158631² = 2614893191588322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36158592 and 36158601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36158641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6026436 + ... + 6026441.

It is an arithmetic number, because the mean of its divisors is an integer number (12052878).

Almost surely, 2^36158631 is an apocalyptic number.

36158631 is a deficient number, since it is larger than the sum of its proper divisors (12052881).

36158631 is a wasteful number, since it uses less digits than its factorization.

36158631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12052880.

The product of its digits is 12960, while the sum is 33.

The square root of 36158631 is about 6013.2047196150. The cubic root of 36158631 is about 330.6770031825.

It can be divided in two parts, 3615 and 8631, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 36158631 in words is "thirty-six million, one hundred fifty-eight thousand, six hundred thirty-one".