161363532 has 48 divisors (see below), whose sum is σ = 413788032. Its totient is φ = 48535680.

The previous prime is 161363513. The next prime is 161363567. The reversal of 161363532 is 235363161.

It is a happy number.

161363532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161363532.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13623 + ... + 22545.

It is an arithmetic number, because the mean of its divisors is an integer number (8620584).

Almost surely, 2^161363532 is an apocalyptic number.

161363532 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 161363532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206894016).

161363532 is an abundant number, since it is smaller than the sum of its proper divisors (252424500).

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

161363532 is a wasteful number, since it uses less digits than its factorization.

161363532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9078 (or 9076 counting only the distinct ones).

The product of its digits is 9720, while the sum is 30.

The square root of 161363532 is about 12702.8946307525. The cubic root of 161363532 is about 544.4213278290.

The spelling of 161363532 in words is "one hundred sixty-one million, three hundred sixty-three thousand, five hundred thirty-two".