163136980 has 12 divisors (see below), whose sum is σ = 342587700. Its totient is φ = 65254784.

The previous prime is 163136957. The next prime is 163136993. The reversal of 163136980 is 89631361.

163136980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 57335184 + 105801796 = 7572^2 + 10286^2 .

It is a super-2 number, since 2×163136980² = 53227348487040800, which contains 22 as substring.

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, 4078405 + ... + 4078444.

It is an arithmetic number, because the mean of its divisors is an integer number (28548975).

Almost surely, 2^163136980 is an apocalyptic number.

163136980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163136980 is an abundant number, since it is smaller than the sum of its proper divisors (179450720).

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

163136980 is a wasteful number, since it uses less digits than its factorization.

163136980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156858 (or 8156856 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 163136980 is about 12772.5087590496. The cubic root of 163136980 is about 546.4085328654.

The spelling of 163136980 in words is "one hundred sixty-three million, one hundred thirty-six thousand, nine hundred eighty".