36149921 has 8 divisors (see below), whose sum is σ = 37468200. Its totient is φ = 34836480.

The previous prime is 36149899. The next prime is 36149923. The reversal of 36149921 is 12994163.

It can be written as a sum of positive squares in 4 ways, for example, as 8059921 + 28090000 = 2839^2 + 5300^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36149921 - 2¹⁰ = 36148897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36149923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21491 + ... + 23111.

It is an arithmetic number, because the mean of its divisors is an integer number (4683525).

Almost surely, 2^36149921 is an apocalyptic number.

It is an amenable number.

36149921 is a deficient number, since it is larger than the sum of its proper divisors (1318279).

36149921 is a wasteful number, since it uses less digits than its factorization.

36149921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419.

The product of its digits is 11664, while the sum is 35.

The square root of 36149921 is about 6012.4804365586. The cubic root of 36149921 is about 330.6504495593.

The spelling of 36149921 in words is "thirty-six million, one hundred forty-nine thousand, nine hundred twenty-one".