163932913 has 2 divisors, whose sum is σ = 163932914. Its totient is φ = 163932912.

The previous prime is 163932907. The next prime is 163932941. The reversal of 163932913 is 319239361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149621824 + 14311089 = 12232^2 + 3783^2 .

It is a cyclic number.

It is not a de Polignac number, because 163932913 - 2²⁵ = 130378481 is a prime.

It is not a weakly prime, because it can be changed into another prime (163932943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81966456 + 81966457.

It is an arithmetic number, because the mean of its divisors is an integer number (81966457).

Almost surely, 2^163932913 is an apocalyptic number.

It is an amenable number.

163932913 is a deficient number, since it is larger than the sum of its proper divisors (1).

163932913 is an equidigital number, since it uses as much as digits as its factorization.

163932913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 37.

The square root of 163932913 is about 12803.6288996518. The cubic root of 163932913 is about 547.2957202356.

It can be divided in two parts, 16393 and 2913, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 163932913 in words is "one hundred sixty-three million, nine hundred thirty-two thousand, nine hundred thirteen".