136808712 has 24 divisors (see below), whose sum is σ = 370523790. Its totient is φ = 45602880.

The previous prime is 136808687. The next prime is 136808713. The reversal of 136808712 is 217808631.

It can be written as a sum of positive squares in only one way, i.e., 135629316 + 1179396 = 11646^2 + 1086^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (136808713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 949989 + ... + 950132.

Almost surely, 2^136808712 is an apocalyptic number.

136808712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136808712 is an abundant number, since it is smaller than the sum of its proper divisors (233715078).

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

136808712 is a wasteful number, since it uses less digits than its factorization.

136808712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900133 (or 1900126 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 136808712 is about 11696.5256379833. The cubic root of 136808712 is about 515.2736309415.

The spelling of 136808712 in words is "one hundred thirty-six million, eight hundred eight thousand, seven hundred twelve".