161534052 has 72 divisors (see below), whose sum is σ = 417764256. Its totient is φ = 52614144.

The previous prime is 161533961. The next prime is 161534053. The reversal of 161534052 is 250435161.

161534052 is a `hidden beast` number, since 1 + 615 + 3 + 40 + 5 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (161534053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465343 + ... + 465689.

Almost surely, 2^161534052 is an apocalyptic number.

161534052 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 161534052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208882128).

161534052 is an abundant number, since it is smaller than the sum of its proper divisors (256230204).

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

161534052 is a wasteful number, since it uses less digits than its factorization.

161534052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 161534052 is about 12709.6047145456. The cubic root of 161534052 is about 544.6130317041.

The spelling of 161534052 in words is "one hundred sixty-one million, five hundred thirty-four thousand, fifty-two".