36131563 has 4 divisors (see below), whose sum is σ = 38910928. Its totient is φ = 33352200.

The previous prime is 36131539. The next prime is 36131587. The reversal of 36131563 is 36513163.

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

It is an interprime number because it is at equal distance from previous prime (36131539) and next prime (36131587).

It is a cyclic number.

It is not a de Polignac number, because 36131563 - 2¹³ = 36123371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36131663) 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, 1389663 + ... + 1389688.

It is an arithmetic number, because the mean of its divisors is an integer number (9727732).

Almost surely, 2^36131563 is an apocalyptic number.

36131563 is a deficient number, since it is larger than the sum of its proper divisors (2779365).

36131563 is a wasteful number, since it uses less digits than its factorization.

36131563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779364.

The product of its digits is 4860, while the sum is 28.

The square root of 36131563 is about 6010.9535849148. The cubic root of 36131563 is about 330.5944687199.

The spelling of 36131563 in words is "thirty-six million, one hundred thirty-one thousand, five hundred sixty-three".