136779160 has 128 divisors (see below), whose sum is σ = 373662720. Its totient is φ = 44047872.

The previous prime is 136779133. The next prime is 136779191. The reversal of 136779160 is 61977631.

It is a happy number.

It is a super-2 number, since 2×136779160² = 37417077220611200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 431322 + ... + 431638.

It is an arithmetic number, because the mean of its divisors is an integer number (2919240).

Almost surely, 2^136779160 is an apocalyptic number.

136779160 is a gapful number since it is divisible by the number (10) 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 136779160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186831360).

136779160 is an abundant number, since it is smaller than the sum of its proper divisors (236883560).

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

136779160 is a wasteful number, since it uses less digits than its factorization.

136779160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 136779160 is about 11695.2622886364. The cubic root of 136779160 is about 515.2365269133.

The spelling of 136779160 in words is "one hundred thirty-six million, seven hundred seventy-nine thousand, one hundred sixty".