136569928 has 32 divisors (see below), whose sum is σ = 281050560. Its totient is φ = 61698880.

The previous prime is 136569913. The next prime is 136569941. The reversal of 136569928 is 829965631.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10050 + ... + 19342.

It is an arithmetic number, because the mean of its divisors is an integer number (8782830).

Almost surely, 2^136569928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136569928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140525280).

136569928 is an abundant number, since it is smaller than the sum of its proper divisors (144480632).

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

136569928 is a wasteful number, since it uses less digits than its factorization.

136569928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9477 (or 9473 counting only the distinct ones).

The product of its digits is 699840, while the sum is 49.

The square root of 136569928 is about 11686.3137045007. The cubic root of 136569928 is about 514.9736725788.

The spelling of 136569928 in words is "one hundred thirty-six million, five hundred sixty-nine thousand, nine hundred twenty-eight".