163418372 has 12 divisors (see below), whose sum is σ = 307980876. Its totient is φ = 75423840.

The previous prime is 163418363. The next prime is 163418383. The reversal of 163418372 is 273814361.

It can be written as a sum of positive squares in 2 ways, for example, as 40119556 + 123298816 = 6334^2 + 11104^2 .

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, 1571279 + ... + 1571382.

It is an arithmetic number, because the mean of its divisors is an integer number (25665073).

Almost surely, 2^163418372 is an apocalyptic number.

It is an amenable number.

163418372 is a deficient number, since it is larger than the sum of its proper divisors (144562504).

163418372 is a wasteful number, since it uses less digits than its factorization.

163418372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142678 (or 3142676 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 163418372 is about 12783.5195466663. The cubic root of 163418372 is about 546.7225157760.

The spelling of 163418372 in words is "one hundred sixty-three million, four hundred eighteen thousand, three hundred seventy-two".