136699776 has 96 divisors (see below), whose sum is σ = 397402200. Its totient is φ = 45100032.

The previous prime is 136699769. The next prime is 136699789. The reversal of 136699776 is 677996631.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122710 + ... + 123818.

Almost surely, 2^136699776 is an apocalyptic number.

136699776 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 136699776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198701100).

136699776 is an abundant number, since it is smaller than the sum of its proper divisors (260702424).

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

136699776 is a wasteful number, since it uses less digits than its factorization.

136699776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1221 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 136699776 is about 11691.8679431475. The cubic root of 136699776 is about 515.1368298254.

The spelling of 136699776 in words is "one hundred thirty-six million, six hundred ninety-nine thousand, seven hundred seventy-six".