163925453 has 2 divisors, whose sum is σ = 163925454. Its totient is φ = 163925452.

The previous prime is 163925431. The next prime is 163925471. The reversal of 163925453 is 354529361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149279524 + 14645929 = 12218^2 + 3827^2 .

It is a cyclic number.

It is not a de Polignac number, because 163925453 - 2⁶ = 163925389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163925753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81962726 + 81962727.

It is an arithmetic number, because the mean of its divisors is an integer number (81962727).

Almost surely, 2^163925453 is an apocalyptic number.

It is an amenable number.

163925453 is a deficient number, since it is larger than the sum of its proper divisors (1).

163925453 is an equidigital number, since it uses as much as digits as its factorization.

163925453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 38.

The square root of 163925453 is about 12803.3375726800. The cubic root of 163925453 is about 547.2874182867.

The spelling of 163925453 in words is "one hundred sixty-three million, nine hundred twenty-five thousand, four hundred fifty-three".