163053953 has 18 divisors (see below), whose sum is σ = 183334914. Its totient is φ = 144493632.

The previous prime is 163053941. The next prime is 163053971. The reversal of 163053953 is 359350361.

It can be written as a sum of positive squares in only one way, i.e., 153462544 + 9591409 = 12388^2 + 3097^2 .

It is not a de Polignac number, because 163053953 - 2⁴ = 163053937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163053353) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1000250 + ... + 1000412.

It is an arithmetic number, because the mean of its divisors is an integer number (10185273).

Almost surely, 2^163053953 is an apocalyptic number.

It is an amenable number.

163053953 is a deficient number, since it is larger than the sum of its proper divisors (20280961).

163053953 is an equidigital number, since it uses as much as digits as its factorization.

163053953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 35.

The square root of 163053953 is about 12769.2581225379. The cubic root of 163053953 is about 546.3158206760.

The spelling of 163053953 in words is "one hundred sixty-three million, fifty-three thousand, nine hundred fifty-three".