136008820 has 12 divisors (see below), whose sum is σ = 285618564. Its totient is φ = 54403520.

The previous prime is 136008809. The next prime is 136008853. The reversal of 136008820 is 28800631.

It can be written as a sum of positive squares in 2 ways, for example, as 45454564 + 90554256 = 6742^2 + 9516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400201 + ... + 3400240.

It is an arithmetic number, because the mean of its divisors is an integer number (23801547).

Almost surely, 2^136008820 is an apocalyptic number.

136008820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136008820 is an abundant number, since it is smaller than the sum of its proper divisors (149609744).

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

136008820 is a wasteful number, since it uses less digits than its factorization.

136008820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800450 (or 6800448 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 136008820 is about 11662.2819379399. The cubic root of 136008820 is about 514.2674349029.

The spelling of 136008820 in words is "one hundred thirty-six million, eight thousand, eight hundred twenty".