136780012 has 18 divisors (see below), whose sum is σ = 252628908. Its totient is φ = 64789848.

The previous prime is 136779989. The next prime is 136780051. The reversal of 136780012 is 210087631.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45918 + ... + 48805.

Almost surely, 2^136780012 is an apocalyptic number.

It is an amenable number.

136780012 is a deficient number, since it is larger than the sum of its proper divisors (115848896).

136780012 is a wasteful number, since it uses less digits than its factorization.

136780012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94765 (or 94744 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 136780012 is about 11695.2987135857. The cubic root of 136780012 is about 515.2375967172.

The spelling of 136780012 in words is "one hundred thirty-six million, seven hundred eighty thousand, twelve".