36658161 has 6 divisors (see below), whose sum is σ = 52950690. Its totient is φ = 24438768.

The previous prime is 36658129. The next prime is 36658177. The reversal of 36658161 is 16185663.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24443136 + 12215025 = 4944^2 + 3495^2 .

It is not a de Polignac number, because 36658161 - 2⁵ = 36658129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36658561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2036556 + ... + 2036573.

It is an arithmetic number, because the mean of its divisors is an integer number (8825115).

Almost surely, 2^36658161 is an apocalyptic number.

It is an amenable number.

36658161 is a deficient number, since it is larger than the sum of its proper divisors (16292529).

36658161 is a wasteful number, since it uses less digits than its factorization.

36658161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073135 (or 4073132 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 36658161 is about 6054.5983351499. The cubic root of 36658161 is about 332.1928072739.

The spelling of 36658161 in words is "thirty-six million, six hundred fifty-eight thousand, one hundred sixty-one".