192231161 has 4 divisors (see below), whose sum is σ = 192260772. Its totient is φ = 192201552.

The previous prime is 192231157. The next prime is 192231163. The reversal of 192231161 is 161132291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183439936 + 8791225 = 13544^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 192231161 - 2² = 192231157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 192231161.

It is not an unprimeable number, because it can be changed into a prime (192231163) 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, 386 + ... + 19611.

It is an arithmetic number, because the mean of its divisors is an integer number (48065193).

Almost surely, 2^192231161 is an apocalyptic number.

It is an amenable number.

192231161 is a deficient number, since it is larger than the sum of its proper divisors (29611).

192231161 is an equidigital number, since it uses as much as digits as its factorization.

192231161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29610.

The product of its digits is 648, while the sum is 26.

The square root of 192231161 is about 13864.7452555033. The cubic root of 192231161 is about 577.1312573904.

The spelling of 192231161 in words is "one hundred ninety-two million, two hundred thirty-one thousand, one hundred sixty-one".