161329954 has 8 divisors (see below), whose sum is σ = 246096720. Its totient is φ = 79297716.

The previous prime is 161329907. The next prime is 161330003. The reversal of 161329954 is 459923161.

161329954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 683484 + ... + 683719.

It is an arithmetic number, because the mean of its divisors is an integer number (30762090).

Almost surely, 2^161329954 is an apocalyptic number.

161329954 is a deficient number, since it is larger than the sum of its proper divisors (84766766).

161329954 is a wasteful number, since it uses less digits than its factorization.

161329954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367264.

The product of its digits is 58320, while the sum is 40.

The square root of 161329954 is about 12701.5728947245. The cubic root of 161329954 is about 544.3835624858.

The spelling of 161329954 in words is "one hundred sixty-one million, three hundred twenty-nine thousand, nine hundred fifty-four".