161230292 has 12 divisors (see below), whose sum is σ = 282244116. Its totient is φ = 80589120.

The previous prime is 161230283. The next prime is 161230297. The reversal of 161230292 is 292032161.

161230292 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 2 ways, for example, as 33223696 + 128006596 = 5764^2 + 11314^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161230297) 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, 16358 + ... + 24290.

It is an arithmetic number, because the mean of its divisors is an integer number (23520343).

Almost surely, 2^161230292 is an apocalyptic number.

It is an amenable number.

161230292 is a deficient number, since it is larger than the sum of its proper divisors (121013824).

161230292 is a wasteful number, since it uses less digits than its factorization.

161230292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13018 (or 13016 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 161230292 is about 12697.6490737459. The cubic root of 161230292 is about 544.2714412729.

The spelling of 161230292 in words is "one hundred sixty-one million, two hundred thirty thousand, two hundred ninety-two".