161354592 has 120 divisors (see below), whose sum is σ = 542391696. Its totient is φ = 46096128.

The previous prime is 161354581. The next prime is 161354617. The reversal of 161354592 is 295453161.

161354592 is a `hidden beast` number, since 1 + 6 + 13 + 54 + 592 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13698 + ... + 22590.

Almost surely, 2^161354592 is an apocalyptic number.

161354592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161354592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271195848).

161354592 is an abundant number, since it is smaller than the sum of its proper divisors (381037104).

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

161354592 is an equidigital number, since it uses as much as digits as its factorization.

161354592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8922 (or 8905 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 161354592 is about 12702.5427375782. The cubic root of 161354592 is about 544.4112734785.

The spelling of 161354592 in words is "one hundred sixty-one million, three hundred fifty-four thousand, five hundred ninety-two".