136665792 has 140 divisors (see below), whose sum is σ = 415646616. Its totient is φ = 44375040.

The previous prime is 136665791. The next prime is 136665811. The reversal of 136665792 is 297566631.

It is not an unprimeable number, because it can be changed into a prime (136665791) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 212223 + ... + 212865.

Almost surely, 2^136665792 is an apocalyptic number.

136665792 is a gapful number since it is divisible by the number (12) 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 136665792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207823308).

136665792 is an abundant number, since it is smaller than the sum of its proper divisors (278980824).

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

136665792 is an equidigital number, since it uses as much as digits as its factorization.

136665792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 689 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 136665792 is about 11690.4145349940. The cubic root of 136665792 is about 515.0941380682.

The spelling of 136665792 in words is "one hundred thirty-six million, six hundred sixty-five thousand, seven hundred ninety-two".