136780268 has 12 divisors (see below), whose sum is σ = 245835072. Its totient is φ = 66541680.

The previous prime is 136780247. The next prime is 136780271. The reversal of 136780268 is 862087631.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461948 + ... + 462243.

It is an arithmetic number, because the mean of its divisors is an integer number (20486256).

Almost surely, 2^136780268 is an apocalyptic number.

It is an amenable number.

136780268 is a deficient number, since it is larger than the sum of its proper divisors (109054804).

136780268 is a wasteful number, since it uses less digits than its factorization.

136780268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924232 (or 924230 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 136780268 is about 11695.3096581493. The cubic root of 136780268 is about 515.2379181597.

The spelling of 136780268 in words is "one hundred thirty-six million, seven hundred eighty thousand, two hundred sixty-eight".