163230541 has 4 divisors (see below), whose sum is σ = 163618684. Its totient is φ = 162842400.

The previous prime is 163230523. The next prime is 163230581. The reversal of 163230541 is 145032361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145032361 = 157 ⋅923773.

It can be written as a sum of positive squares in 2 ways, for example, as 56025225 + 107205316 = 7485^2 + 10354^2 .

It is a cyclic number.

It is not a de Polignac number, because 163230541 - 2⁹ = 163230029 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163230581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193440 + ... + 194281.

It is an arithmetic number, because the mean of its divisors is an integer number (40904671).

Almost surely, 2^163230541 is an apocalyptic number.

It is an amenable number.

163230541 is a deficient number, since it is larger than the sum of its proper divisors (388143).

163230541 is an equidigital number, since it uses as much as digits as its factorization.

163230541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388142.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 163230541 is about 12776.1708269732. The cubic root of 163230541 is about 546.5129701686.

The spelling of 163230541 in words is "one hundred sixty-three million, two hundred thirty thousand, five hundred forty-one".