161303332 has 12 divisors (see below), whose sum is σ = 282411136. Its totient is φ = 80614440.

The previous prime is 161303299. The next prime is 161303339. The reversal of 161303332 is 233303161.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (161303339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1957 + ... + 18067.

Almost surely, 2^161303332 is an apocalyptic number.

It is an amenable number.

161303332 is a deficient number, since it is larger than the sum of its proper divisors (121107804).

161303332 is a wasteful number, since it uses less digits than its factorization.

161303332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18618 (or 18616 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 161303332 is about 12700.5248710437. The cubic root of 161303332 is about 544.3536168659.

Adding to 161303332 its reverse (233303161), we get a palindrome (394606493).

The spelling of 161303332 in words is "one hundred sixty-one million, three hundred three thousand, three hundred thirty-two".