163391027 has 8 divisors (see below), whose sum is σ = 167680800. Its totient is φ = 159115840.

The previous prime is 163391023. The next prime is 163391047. The reversal of 163391027 is 720193361.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 163391027 - 2² = 163391023 is a prime.

It is a super-2 number, since 2×163391027² = 53393255408229458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163390984 and 163391002.

It is not an unprimeable number, because it can be changed into a prime (163391023) 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, 21233 + ... + 27885.

It is an arithmetic number, because the mean of its divisors is an integer number (20960100).

Almost surely, 2^163391027 is an apocalyptic number.

163391027 is a deficient number, since it is larger than the sum of its proper divisors (4289773).

163391027 is an equidigital number, since it uses as much as digits as its factorization.

163391027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7293.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 163391027 is about 12782.4499607861. The cubic root of 163391027 is about 546.6920194881.

The spelling of 163391027 in words is "one hundred sixty-three million, three hundred ninety-one thousand, twenty-seven".