36315531 has 24 divisors (see below), whose sum is σ = 60194784. Its totient is φ = 20666880.

The previous prime is 36315527. The next prime is 36315599. The reversal of 36315531 is 13551363.

It is not a de Polignac number, because 36315531 - 2² = 36315527 is a prime.

It is a super-2 number, since 2×36315531² = 2637635583623922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36315495 and 36315504.

It is not an unprimeable number, because it can be changed into a prime (36315931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16411 + ... + 18491.

It is an arithmetic number, because the mean of its divisors is an integer number (2508116).

Almost surely, 2^36315531 is an apocalyptic number.

36315531 is a deficient number, since it is larger than the sum of its proper divisors (23879253).

36315531 is a wasteful number, since it uses less digits than its factorization.

36315531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371 (or 2368 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 36315531 is about 6026.2368854867. The cubic root of 36315531 is about 331.1546056860.

Adding to 36315531 its reverse (13551363), we get a palindrome (49866894).

The spelling of 36315531 in words is "thirty-six million, three hundred fifteen thousand, five hundred thirty-one".