163224955 has 4 divisors (see below), whose sum is σ = 195869952. Its totient is φ = 130579960.

The previous prime is 163224949. The next prime is 163224961. The reversal of 163224955 is 559422361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 559422361 = 4507 ⋅124123.

It is an interprime number because it is at equal distance from previous prime (163224949) and next prime (163224961).

It is not a de Polignac number, because 163224955 - 2⁹ = 163224443 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16322491 + ... + 16322500.

It is an arithmetic number, because the mean of its divisors is an integer number (48967488).

Almost surely, 2^163224955 is an apocalyptic number.

163224955 is a deficient number, since it is larger than the sum of its proper divisors (32644997).

163224955 is an equidigital number, since it uses as much as digits as its factorization.

163224955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32644996.

The product of its digits is 64800, while the sum is 37.

The square root of 163224955 is about 12775.9522150014. The cubic root of 163224955 is about 546.5067359262.

The spelling of 163224955 in words is "one hundred sixty-three million, two hundred twenty-four thousand, nine hundred fifty-five".