136332644 has 24 divisors (see below), whose sum is σ = 272912640. Its totient is φ = 58375296.

The previous prime is 136332629. The next prime is 136332649. The reversal of 136332644 is 446233631.

It is a self number, because there is not a number n which added to its sum of digits gives 136332644.

It is not an unprimeable number, because it can be changed into a prime (136332649) 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, 58469 + ... + 60755.

It is an arithmetic number, because the mean of its divisors is an integer number (11371360).

Almost surely, 2^136332644 is an apocalyptic number.

136332644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

136332644 is an abundant number, since it is smaller than the sum of its proper divisors (136579996).

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

136332644 is a wasteful number, since it uses less digits than its factorization.

136332644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427 (or 4425 counting only the distinct ones).

The product of its digits is 31104, while the sum is 32.

The square root of 136332644 is about 11676.1570732840. The cubic root of 136332644 is about 514.6752519515.

The spelling of 136332644 in words is "one hundred thirty-six million, three hundred thirty-two thousand, six hundred forty-four".