161350988 has 12 divisors (see below), whose sum is σ = 282456720. Its totient is φ = 80649072.

The previous prime is 161350967. The next prime is 161350999. The reversal of 161350988 is 889053161.

It is a super-2 number, since 2×161350988² = 52068282657152288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14945 + ... + 23367.

It is an arithmetic number, because the mean of its divisors is an integer number (23538060).

Almost surely, 2^161350988 is an apocalyptic number.

It is an amenable number.

161350988 is a deficient number, since it is larger than the sum of its proper divisors (121105732).

161350988 is a wasteful number, since it uses less digits than its factorization.

161350988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13216 (or 13214 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 161350988 is about 12702.4008754251. The cubic root of 161350988 is about 544.4072201431.

The spelling of 161350988 in words is "one hundred sixty-one million, three hundred fifty thousand, nine hundred eighty-eight".