136922660 has 72 divisors (see below), whose sum is σ = 345348864. Its totient is φ = 45420480.

The previous prime is 136922647. The next prime is 136922663. The reversal of 136922660 is 66229631.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 136922660.

It is not an unprimeable number, because it can be changed into a prime (136922663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28127 + ... + 32633.

It is an arithmetic number, because the mean of its divisors is an integer number (4796512).

Almost surely, 2^136922660 is an apocalyptic number.

136922660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136922660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172674432).

136922660 is an abundant number, since it is smaller than the sum of its proper divisors (208426204).

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

136922660 is a wasteful number, since it uses less digits than its factorization.

136922660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561 (or 4552 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 136922660 is about 11701.3956432556. The cubic root of 136922660 is about 515.4166484080.

The spelling of 136922660 in words is "one hundred thirty-six million, nine hundred twenty-two thousand, six hundred sixty".