163137550 has 24 divisors (see below), whose sum is σ = 306281736. Its totient is φ = 64643040.

The previous prime is 163137521. The next prime is 163137581. The reversal of 163137550 is 55731361.

It is a super-2 number, since 2×163137550² = 53227720440005000, 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 11 ways as a sum of consecutive naturals, for example, 9897 + ... + 20596.

It is an arithmetic number, because the mean of its divisors is an integer number (12761739).

Almost surely, 2^163137550 is an apocalyptic number.

163137550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163137550 is a deficient number, since it is larger than the sum of its proper divisors (143144186).

163137550 is a wasteful number, since it uses less digits than its factorization.

163137550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30612 (or 30607 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 163137550 is about 12772.5310725792. The cubic root of 163137550 is about 546.4091692478.

The spelling of 163137550 in words is "one hundred sixty-three million, one hundred thirty-seven thousand, five hundred fifty".