136489776 has 80 divisors (see below), whose sum is σ = 376642560. Its totient is φ = 42497280.

The previous prime is 136489763. The next prime is 136489819. The reversal of 136489776 is 677984631.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41571 + ... + 44733.

It is an arithmetic number, because the mean of its divisors is an integer number (4708032).

Almost surely, 2^136489776 is an apocalyptic number.

136489776 is a gapful number since it is divisible by the number (16) 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 136489776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188321280).

136489776 is an abundant number, since it is smaller than the sum of its proper divisors (240152784).

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

136489776 is a wasteful number, since it uses less digits than its factorization.

136489776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234 (or 3228 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 136489776 is about 11682.8838905469. The cubic root of 136489776 is about 514.8729079670.

The spelling of 136489776 in words is "one hundred thirty-six million, four hundred eighty-nine thousand, seven hundred seventy-six".