163982537 has 2 divisors, whose sum is σ = 163982538. Its totient is φ = 163982536.

The previous prime is 163982513. The next prime is 163982569. The reversal of 163982537 is 735289361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162282121 + 1700416 = 12739^2 + 1304^2 .

It is a cyclic number.

It is not a de Polignac number, because 163982537 - 2⁶ = 163982473 is a prime.

It is not a weakly prime, because it can be changed into another prime (163982587) 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 as a sum of consecutive naturals, namely, 81991268 + 81991269.

It is an arithmetic number, because the mean of its divisors is an integer number (81991269).

Almost surely, 2^163982537 is an apocalyptic number.

It is an amenable number.

163982537 is a deficient number, since it is larger than the sum of its proper divisors (1).

163982537 is an equidigital number, since it uses as much as digits as its factorization.

163982537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 163982537 is about 12805.5666411135. The cubic root of 163982537 is about 547.3509384798.

The spelling of 163982537 in words is "one hundred sixty-three million, nine hundred eighty-two thousand, five hundred thirty-seven".