136209964 has 12 divisors (see below), whose sum is σ = 260037288. Its totient is φ = 61913600.

The previous prime is 136209949. The next prime is 136209971. The reversal of 136209964 is 469902631.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1547797 + ... + 1547884.

It is an arithmetic number, because the mean of its divisors is an integer number (21669774).

Almost surely, 2^136209964 is an apocalyptic number.

It is an amenable number.

136209964 is a deficient number, since it is larger than the sum of its proper divisors (123827324).

136209964 is a wasteful number, since it uses less digits than its factorization.

136209964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095696 (or 3095694 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 136209964 is about 11670.9024501107. The cubic root of 136209964 is about 514.5208274336.

The spelling of 136209964 in words is "one hundred thirty-six million, two hundred nine thousand, nine hundred sixty-four".