161352234 has 12 divisors (see below), whose sum is σ = 349596546. Its totient is φ = 53784072.

The previous prime is 161352221. The next prime is 161352251. The reversal of 161352234 is 432253161.

It can be written as a sum of positive squares in only one way, i.e., 155077209 + 6275025 = 12453^2 + 2505^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161352198 and 161352207.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4481989 + ... + 4482024.

Almost surely, 2^161352234 is an apocalyptic number.

161352234 is an abundant number, since it is smaller than the sum of its proper divisors (188244312).

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

161352234 is a wasteful number, since it uses less digits than its factorization.

161352234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8964021 (or 8964018 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 161352234 is about 12702.4499211766. The cubic root of 161352234 is about 544.4086214973.

The spelling of 161352234 in words is "one hundred sixty-one million, three hundred fifty-two thousand, two hundred thirty-four".