136664433 has 6 divisors (see below), whose sum is σ = 197404194. Its totient is φ = 91109616.

The previous prime is 136664419. The next prime is 136664447. The reversal of 136664433 is 334466631.

It is an interprime number because it is at equal distance from previous prime (136664419) and next prime (136664447).

It can be written as a sum of positive squares in only one way, i.e., 94245264 + 42419169 = 9708^2 + 6513^2 .

It is not a de Polignac number, because 136664433 - 2⁵ = 136664401 is a prime.

It is a super-2 number, since 2×136664433² = 37354334494422978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136664453) 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, 7592460 + ... + 7592477.

It is an arithmetic number, because the mean of its divisors is an integer number (32900699).

Almost surely, 2^136664433 is an apocalyptic number.

It is an amenable number.

136664433 is a deficient number, since it is larger than the sum of its proper divisors (60739761).

136664433 is a wasteful number, since it uses less digits than its factorization.

136664433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15184943 (or 15184940 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The square root of 136664433 is about 11690.3564103067. The cubic root of 136664433 is about 515.0924307030.

The spelling of 136664433 in words is "one hundred thirty-six million, six hundred sixty-four thousand, four hundred thirty-three".