136807770 has 64 divisors (see below), whose sum is σ = 363294720. Its totient is φ = 32692800.

The previous prime is 136807763. The next prime is 136807817. The reversal of 136807770 is 77708631.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20511 + ... + 26349.

It is an arithmetic number, because the mean of its divisors is an integer number (5676480).

Almost surely, 2^136807770 is an apocalyptic number.

136807770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 136807770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181647360).

136807770 is an abundant number, since it is smaller than the sum of its proper divisors (226486950).

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

136807770 is a wasteful number, since it uses less digits than its factorization.

136807770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 136807770 is about 11696.4853695458. The cubic root of 136807770 is about 515.2724482954.

The spelling of 136807770 in words is "one hundred thirty-six million, eight hundred seven thousand, seven hundred seventy".