136670928 has 40 divisors (see below), whose sum is σ = 355039776. Its totient is φ = 45302400.

The previous prime is 136670903. The next prime is 136670929. The reversal of 136670928 is 829076631.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 136670928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136670929) 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, 823 + ... + 16553.

Almost surely, 2^136670928 is an apocalyptic number.

It is an amenable number.

136670928 is an abundant number, since it is smaller than the sum of its proper divisors (218368848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136670928 is a wasteful number, since it uses less digits than its factorization.

136670928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15923 (or 15917 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 136670928 is about 11690.6342000766. The cubic root of 136670928 is about 515.1005905250.

The spelling of 136670928 in words is "one hundred thirty-six million, six hundred seventy thousand, nine hundred twenty-eight".