136978296 has 128 divisors (see below), whose sum is σ = 443788800. Its totient is φ = 34214400.

The previous prime is 136978207. The next prime is 136978301. The reversal of 136978296 is 692879631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39846 + ... + 43146.

It is an arithmetic number, because the mean of its divisors is an integer number (3467100).

Almost surely, 2^136978296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136978296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221894400).

136978296 is an abundant number, since it is smaller than the sum of its proper divisors (306810504).

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

136978296 is a wasteful number, since it uses less digits than its factorization.

136978296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349 (or 3345 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 136978296 is about 11703.7727250661. The cubic root of 136978296 is about 515.4864489742.

The spelling of 136978296 in words is "one hundred thirty-six million, nine hundred seventy-eight thousand, two hundred ninety-six".