161030052 has 96 divisors (see below), whose sum is σ = 445132800. Its totient is φ = 50167296.

The previous prime is 161030041. The next prime is 161030063. The reversal of 161030052 is 250030161.

161030052 is a `hidden beast` number, since 1 + 610 + 3 + 0 + 0 + 52 = 666.

161030052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161030041) and next prime (161030063).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420253 + ... + 420635.

It is an arithmetic number, because the mean of its divisors is an integer number (4636800).

Almost surely, 2^161030052 is an apocalyptic number.

161030052 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 161030052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222566400).

161030052 is an abundant number, since it is smaller than the sum of its proper divisors (284102748).

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

161030052 is a wasteful number, since it uses less digits than its factorization.

161030052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 161030052 is about 12689.7616998902. The cubic root of 161030052 is about 544.0460285808.

The spelling of 161030052 in words is "one hundred sixty-one million, thirty thousand, fifty-two".