161494332 has 24 divisors (see below), whose sum is σ = 377731200. Its totient is φ = 53701296.

The previous prime is 161494309. The next prime is 161494363. The reversal of 161494332 is 233494161.

It is a junction number, because it is equal to n+sod(n) for n = 161494293 and 161494302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11032 + ... + 21087.

It is an arithmetic number, because the mean of its divisors is an integer number (15738800).

Almost surely, 2^161494332 is an apocalyptic number.

161494332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161494332 is an abundant number, since it is smaller than the sum of its proper divisors (216236868).

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

161494332 is a wasteful number, since it uses less digits than its factorization.

161494332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32545 (or 32543 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 161494332 is about 12708.0420207048. The cubic root of 161494332 is about 544.5683893049.

The spelling of 161494332 in words is "one hundred sixty-one million, four hundred ninety-four thousand, three hundred thirty-two".