163992269 has 6 divisors (see below), whose sum is σ = 190766574. Its totient is φ = 140564760.

The previous prime is 163992253. The next prime is 163992271. The reversal of 163992269 is 962299361.

163992269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 100200100 + 63792169 = 10010^2 + 7987^2 .

It is not a de Polignac number, because 163992269 - 2⁴ = 163992253 is a prime.

It is a super-2 number, since 2×163992269² = 53786928583536722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163992209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1673342 + ... + 1673439.

It is an arithmetic number, because the mean of its divisors is an integer number (31794429).

Almost surely, 2^163992269 is an apocalyptic number.

It is an amenable number.

163992269 is a deficient number, since it is larger than the sum of its proper divisors (26774305).

163992269 is an equidigital number, since it uses as much as digits as its factorization.

163992269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346795 (or 3346788 counting only the distinct ones).

The product of its digits is 314928, while the sum is 47.

The square root of 163992269 is about 12805.9466264701. The cubic root of 163992269 is about 547.3617662871.

The spelling of 163992269 in words is "one hundred sixty-three million, nine hundred ninety-two thousand, two hundred sixty-nine".