136909880 has 16 divisors (see below), whose sum is σ = 308047320. Its totient is φ = 54763936.

The previous prime is 136909867. The next prime is 136909889. The reversal of 136909880 is 88909631.

136909880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×136909880² = 37488630483228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136909889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711334 + ... + 1711413.

Almost surely, 2^136909880 is an apocalyptic number.

136909880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136909880 is an abundant number, since it is smaller than the sum of its proper divisors (171137440).

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

136909880 is a wasteful number, since it uses less digits than its factorization.

136909880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422758 (or 3422754 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 136909880 is about 11700.8495418068. The cubic root of 136909880 is about 515.4006120321.

The spelling of 136909880 in words is "one hundred thirty-six million, nine hundred nine thousand, eight hundred eighty".