161092254 has 24 divisors (see below), whose sum is σ = 327119688. Its totient is φ = 52887120.

The previous prime is 161092249. The next prime is 161092333. The reversal of 161092254 is 452290161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23944 + ... + 29924.

It is an arithmetic number, because the mean of its divisors is an integer number (13629987).

Almost surely, 2^161092254 is an apocalyptic number.

161092254 is an abundant number, since it is smaller than the sum of its proper divisors (166027434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161092254 is an equidigital number, since it uses as much as digits as its factorization.

161092254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120 (or 6053 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 161092254 is about 12692.2123367047. The cubic root of 161092254 is about 544.1160701544.

The spelling of 161092254 in words is "one hundred sixty-one million, ninety-two thousand, two hundred fifty-four".