163112993 has 8 divisors (see below), whose sum is σ = 166480800. Its totient is φ = 159765408.

The previous prime is 163112981. The next prime is 163113031. The reversal of 163112993 is 399211361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163112993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163112953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11813 + ... + 21581.

It is an arithmetic number, because the mean of its divisors is an integer number (20810100).

Almost surely, 2^163112993 is an apocalyptic number.

It is an amenable number.

163112993 is a deficient number, since it is larger than the sum of its proper divisors (3367807).

163112993 is an equidigital number, since it uses as much as digits as its factorization.

163112993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111.

The product of its digits is 8748, while the sum is 35.

The square root of 163112993 is about 12771.5697155831. The cubic root of 163112993 is about 546.3817509877.

The spelling of 163112993 in words is "one hundred sixty-three million, one hundred twelve thousand, nine hundred ninety-three".