163455013 has 2 divisors, whose sum is σ = 163455014. Its totient is φ = 163455012.

The previous prime is 163455001. The next prime is 163455053. The reversal of 163455013 is 310554361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107474689 + 55980324 = 10367^2 + 7482^2 .

It is a cyclic number.

It is not a de Polignac number, because 163455013 - 2²⁵ = 129900581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163455053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81727506 + 81727507.

It is an arithmetic number, because the mean of its divisors is an integer number (81727507).

Almost surely, 2^163455013 is an apocalyptic number.

It is an amenable number.

163455013 is a deficient number, since it is larger than the sum of its proper divisors (1).

163455013 is an equidigital number, since it uses as much as digits as its factorization.

163455013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 163455013 is about 12784.9526006161. The cubic root of 163455013 is about 546.7633740191.

The spelling of 163455013 in words is "one hundred sixty-three million, four hundred fifty-five thousand, thirteen".