36021951 has 12 divisors (see below), whose sum is σ = 59464912. Its totient is φ = 20583936.

The previous prime is 36021941. The next prime is 36021959. The reversal of 36021951 is 15912063.

36021951 is a `hidden beast` number, since 3 + 602 + 1 + 9 + 51 = 666.

It is not a de Polignac number, because 36021951 - 2¹⁸ = 35759807 is a prime.

It is a Duffinian number.

36021951 is a modest number, since divided by 21951 gives 360 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36021959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285826 + ... + 285951.

Almost surely, 2^36021951 is an apocalyptic number.

36021951 is a deficient number, since it is larger than the sum of its proper divisors (23442961).

36021951 is a wasteful number, since it uses less digits than its factorization.

36021951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571790 (or 571787 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 36021951 is about 6001.8289712387. The cubic root of 36021951 is about 330.2598229250.

The spelling of 36021951 in words is "thirty-six million, twenty-one thousand, nine hundred fifty-one".