36131512 has 8 divisors (see below), whose sum is σ = 67746600. Its totient is φ = 18065752.

The previous prime is 36131507. The next prime is 36131527. The reversal of 36131512 is 21513163.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×36131512² = 2610972318812288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2258212 + ... + 2258227.

It is an arithmetic number, because the mean of its divisors is an integer number (8468325).

Almost surely, 2^36131512 is an apocalyptic number.

It is an amenable number.

36131512 is a deficient number, since it is larger than the sum of its proper divisors (31615088).

36131512 is a wasteful number, since it uses less digits than its factorization.

36131512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516445 (or 4516441 counting only the distinct ones).

The product of its digits is 540, while the sum is 22.

The square root of 36131512 is about 6010.9493426579. The cubic root of 36131512 is about 330.5943131742.

Adding to 36131512 its reverse (21513163), we get a palindrome (57644675).

The spelling of 36131512 in words is "thirty-six million, one hundred thirty-one thousand, five hundred twelve".