136158920 has 16 divisors (see below), whose sum is σ = 306357660. Its totient is φ = 54463552.

The previous prime is 136158907. The next prime is 136158929. The reversal of 136158920 is 29851631.

It can be written as a sum of positive squares in 2 ways, for example, as 134606404 + 1552516 = 11602^2 + 1246^2 .

It is not an unprimeable number, because it can be changed into a prime (136158929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701947 + ... + 1702026.

Almost surely, 2^136158920 is an apocalyptic number.

136158920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136158920 is an abundant number, since it is smaller than the sum of its proper divisors (170198740).

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

136158920 is a wasteful number, since it uses less digits than its factorization.

136158920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403984 (or 3403980 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 136158920 is about 11668.7154391561. The cubic root of 136158920 is about 514.4565480380.

The spelling of 136158920 in words is "one hundred thirty-six million, one hundred fifty-eight thousand, nine hundred twenty".