163230545 has 16 divisors (see below), whose sum is σ = 198113040. Its totient is φ = 129103104.

The previous prime is 163230523. The next prime is 163230581. The reversal of 163230545 is 545032361.

It can be written as a sum of positive squares in 8 ways, for example, as 68674369 + 94556176 = 8287^2 + 9724^2 .

It is a cyclic number.

It is not a de Polignac number, because 163230545 - 2²⁰ = 162181969 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210779 + ... + 211551.

It is an arithmetic number, because the mean of its divisors is an integer number (12382065).

Almost surely, 2^163230545 is an apocalyptic number.

It is an amenable number.

163230545 is a deficient number, since it is larger than the sum of its proper divisors (34882495).

163230545 is a wasteful number, since it uses less digits than its factorization.

163230545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 163230545 is about 12776.1709835146. The cubic root of 163230545 is about 546.5129746327.

The spelling of 163230545 in words is "one hundred sixty-three million, two hundred thirty thousand, five hundred forty-five".