161238974 has 8 divisors (see below), whose sum is σ = 260463000. Its totient is φ = 74417976.

The previous prime is 161238971. The next prime is 161238989. The reversal of 161238974 is 479832161.

161238974 is digitally balanced in base 3, 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161238971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3100724 + ... + 3100775.

It is an arithmetic number, because the mean of its divisors is an integer number (32557875).

Almost surely, 2^161238974 is an apocalyptic number.

161238974 is a deficient number, since it is larger than the sum of its proper divisors (99224026).

161238974 is a wasteful number, since it uses less digits than its factorization.

161238974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201514.

The product of its digits is 72576, while the sum is 41.

The square root of 161238974 is about 12697.9909434524. The cubic root of 161238974 is about 544.2812104873.

The spelling of 161238974 in words is "one hundred sixty-one million, two hundred thirty-eight thousand, nine hundred seventy-four".