136787712 has 72 divisors (see below), whose sum is σ = 385506576. Its totient is φ = 42909696.

The previous prime is 136787701. The next prime is 136787737. The reversal of 136787712 is 217787631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7818 + ... + 18294.

It is an arithmetic number, because the mean of its divisors is an integer number (5354258).

Almost surely, 2^136787712 is an apocalyptic number.

136787712 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 136787712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192753288).

136787712 is an abundant number, since it is smaller than the sum of its proper divisors (248718864).

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

136787712 is a wasteful number, since it uses less digits than its factorization.

136787712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10513 (or 10499 counting only the distinct ones).

The product of its digits is 98784, while the sum is 42.

The square root of 136787712 is about 11695.6279010577. The cubic root of 136787712 is about 515.2472649306.

The spelling of 136787712 in words is "one hundred thirty-six million, seven hundred eighty-seven thousand, seven hundred twelve".