163912427 has 4 divisors (see below), whose sum is σ = 187328496. Its totient is φ = 140496360.

The previous prime is 163912409. The next prime is 163912433. The reversal of 163912427 is 724219361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163912427 - 2¹⁰ = 163911403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163912447) 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, 11708024 + ... + 11708037.

It is an arithmetic number, because the mean of its divisors is an integer number (46832124).

Almost surely, 2^163912427 is an apocalyptic number.

163912427 is a deficient number, since it is larger than the sum of its proper divisors (23416069).

163912427 is an equidigital number, since it uses as much as digits as its factorization.

163912427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23416068.

The product of its digits is 18144, while the sum is 35.

The square root of 163912427 is about 12802.8288670903. The cubic root of 163912427 is about 547.2729215452.

The spelling of 163912427 in words is "one hundred sixty-three million, nine hundred twelve thousand, four hundred twenty-seven".