136907790 has 64 divisors (see below), whose sum is σ = 338549760. Its totient is φ = 35418240.

The previous prime is 136907767. The next prime is 136907791. The reversal of 136907790 is 97709631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136907791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144097 + ... + 145043.

It is an arithmetic number, because the mean of its divisors is an integer number (5289840).

Almost surely, 2^136907790 is an apocalyptic number.

136907790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 136907790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169274880).

136907790 is an abundant number, since it is smaller than the sum of its proper divisors (201641970).

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

136907790 is a wasteful number, since it uses less digits than its factorization.

136907790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097.

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 136907790 is about 11700.7602317114. The cubic root of 136907790 is about 515.3979894000.

The spelling of 136907790 in words is "one hundred thirty-six million, nine hundred seven thousand, seven hundred ninety".