136625780 has 24 divisors (see below), whose sum is σ = 287499240. Its totient is φ = 54538880.

The previous prime is 136625779. The next prime is 136625807. The reversal of 136625780 is 87526631.

It can be written as a sum of positive squares in 4 ways, for example, as 65189476 + 71436304 = 8074^2 + 8452^2 .

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 7 ways as a sum of consecutive naturals, for example, 3470 + ... + 16890.

It is an arithmetic number, because the mean of its divisors is an integer number (11979135).

Almost surely, 2^136625780 is an apocalyptic number.

136625780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136625780 is an abundant number, since it is smaller than the sum of its proper divisors (150873460).

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

136625780 is a wasteful number, since it uses less digits than its factorization.

136625780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13939 (or 13937 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 136625780 is about 11688.7030931579. The cubic root of 136625780 is about 515.0438646774.

The spelling of 136625780 in words is "one hundred thirty-six million, six hundred twenty-five thousand, seven hundred eighty".