136636964 has 24 divisors (see below), whose sum is σ = 247301376. Its totient is φ = 65988000.

The previous prime is 136636963. The next prime is 136636993. The reversal of 136636964 is 469636631.

It is a super-2 number, since 2×136636964² = 37339319862274592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136636963) 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, 116099 + ... + 117269.

It is an arithmetic number, because the mean of its divisors is an integer number (10304224).

Almost surely, 2^136636964 is an apocalyptic number.

It is an amenable number.

136636964 is a deficient number, since it is larger than the sum of its proper divisors (110664412).

136636964 is a wasteful number, since it uses less digits than its factorization.

136636964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147 (or 2145 counting only the distinct ones).

The product of its digits is 419904, while the sum is 44.

The square root of 136636964 is about 11689.1814940140. The cubic root of 136636964 is about 515.0579178900.

The spelling of 136636964 in words is "one hundred thirty-six million, six hundred thirty-six thousand, nine hundred sixty-four".