136819928 has 16 divisors (see below), whose sum is σ = 293185680. Its totient is φ = 58637088.

The previous prime is 136819919. The next prime is 136819951. The reversal of 136819928 is 829918631.

It is a congruent 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, 1221551 + ... + 1221662.

It is an arithmetic number, because the mean of its divisors is an integer number (18324105).

Almost surely, 2^136819928 is an apocalyptic number.

It is an amenable number.

136819928 is an abundant number, since it is smaller than the sum of its proper divisors (156365752).

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

136819928 is a wasteful number, since it uses less digits than its factorization.

136819928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443226 (or 2443222 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 136819928 is about 11697.0050867733. The cubic root of 136819928 is about 515.2877117970.

The spelling of 136819928 in words is "one hundred thirty-six million, eight hundred nineteen thousand, nine hundred twenty-eight".