163315387 has 4 divisors (see below), whose sum is σ = 170416080. Its totient is φ = 156214696.

The previous prime is 163315351. The next prime is 163315417. The reversal of 163315387 is 783513361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783513361 = 11161 ⋅70201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163315387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163315307) 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, 3550312 + ... + 3550357.

It is an arithmetic number, because the mean of its divisors is an integer number (42604020).

Almost surely, 2^163315387 is an apocalyptic number.

163315387 is a deficient number, since it is larger than the sum of its proper divisors (7100693).

163315387 is an equidigital number, since it uses as much as digits as its factorization.

163315387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7100692.

The product of its digits is 45360, while the sum is 37.

The square root of 163315387 is about 12779.4908740528. The cubic root of 163315387 is about 546.6076448688.

It can be divided in two parts, 1633 and 15387, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 163315387 in words is "one hundred sixty-three million, three hundred fifteen thousand, three hundred eighty-seven".