163137388 has 6 divisors (see below), whose sum is σ = 285490436. Its totient is φ = 81568692.

The previous prime is 163137371. The next prime is 163137391. The reversal of 163137388 is 883731361.

163137388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×163137388² = 53227614726925088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163137388.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20392170 + ... + 20392177.

Almost surely, 2^163137388 is an apocalyptic number.

It is an amenable number.

163137388 is a deficient number, since it is larger than the sum of its proper divisors (122353048).

163137388 is a wasteful number, since it uses less digits than its factorization.

163137388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40784351 (or 40784349 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 163137388 is about 12772.5247308432. The cubic root of 163137388 is about 546.4089883813.

The spelling of 163137388 in words is "one hundred sixty-three million, one hundred thirty-seven thousand, three hundred eighty-eight".