163263387 has 16 divisors (see below), whose sum is σ = 250225920. Its totient is φ = 92752032.

The previous prime is 163263377. The next prime is 163263413. The reversal of 163263387 is 783362361.

It is not a de Polignac number, because 163263387 - 2²⁶ = 96154523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163263307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18837 + ... + 26102.

It is an arithmetic number, because the mean of its divisors is an integer number (15639120).

Almost surely, 2^163263387 is an apocalyptic number.

163263387 is a deficient number, since it is larger than the sum of its proper divisors (86962533).

163263387 is a wasteful number, since it uses less digits than its factorization.

163263387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45122.

The product of its digits is 108864, while the sum is 39.

The square root of 163263387 is about 12777.4562022337. The cubic root of 163263387 is about 546.5496249943.

The spelling of 163263387 in words is "one hundred sixty-three million, two hundred sixty-three thousand, three hundred eighty-seven".