163273369 has 4 divisors (see below), whose sum is σ = 186598144. Its totient is φ = 139948596.

The previous prime is 163273339. The next prime is 163273379. The reversal of 163273369 is 963372361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163273369 - 2¹¹ = 163271321 is a prime.

It is a super-2 number, since 2×163273369² = 53316386049220322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163273339) 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, 11662377 + ... + 11662390.

It is an arithmetic number, because the mean of its divisors is an integer number (46649536).

Almost surely, 2^163273369 is an apocalyptic number.

It is an amenable number.

163273369 is a deficient number, since it is larger than the sum of its proper divisors (23324775).

163273369 is an equidigital number, since it uses as much as digits as its factorization.

163273369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23324774.

The product of its digits is 122472, while the sum is 40.

The square root of 163273369 is about 12777.8468060937. The cubic root of 163273369 is about 546.5607635341.

The spelling of 163273369 in words is "one hundred sixty-three million, two hundred seventy-three thousand, three hundred sixty-nine".