163442713 has 4 divisors (see below), whose sum is σ = 186791680. Its totient is φ = 140093748.

The previous prime is 163442677. The next prime is 163442717. The reversal of 163442713 is 317244361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163442713 - 2²⁵ = 129888281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163442717) 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, 11674473 + ... + 11674486.

It is an arithmetic number, because the mean of its divisors is an integer number (46697920).

Almost surely, 2^163442713 is an apocalyptic number.

It is an amenable number.

163442713 is a deficient number, since it is larger than the sum of its proper divisors (23348967).

163442713 is an equidigital number, since it uses as much as digits as its factorization.

163442713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23348966.

The product of its digits is 12096, while the sum is 31.

The square root of 163442713 is about 12784.4715573230. The cubic root of 163442713 is about 546.7496590156.

The spelling of 163442713 in words is "one hundred sixty-three million, four hundred forty-two thousand, seven hundred thirteen".