36722531 has 4 divisors (see below), whose sum is σ = 36742200. Its totient is φ = 36702864.

The previous prime is 36722527. The next prime is 36722579. The reversal of 36722531 is 13522763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13522763 = 2423 ⋅5581.

It is a cyclic number.

It is not a de Polignac number, because 36722531 - 2² = 36722527 is a prime.

It is a super-2 number, since 2×36722531² = 2697088566091922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36722494 and 36722503.

It is not an unprimeable number, because it can be changed into a prime (36722591) 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, 6701 + ... + 10878.

It is an arithmetic number, because the mean of its divisors is an integer number (9185550).

Almost surely, 2^36722531 is an apocalyptic number.

36722531 is a deficient number, since it is larger than the sum of its proper divisors (19669).

36722531 is a wasteful number, since it uses less digits than its factorization.

36722531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19668.

The product of its digits is 7560, while the sum is 29.

The square root of 36722531 is about 6059.9117980380. The cubic root of 36722531 is about 332.3871318720.

The spelling of 36722531 in words is "thirty-six million, seven hundred twenty-two thousand, five hundred thirty-one".