16161974 has 8 divisors (see below), whose sum is σ = 25025088. Its totient is φ = 7820280.

The previous prime is 16161953. The next prime is 16161991. The reversal of 16161974 is 47916161.

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

It is a super-2 number, since 2×16161974² = 522418807153352, which contains 22 as substring.

It is a congruent number.

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, 130277 + ... + 130400.

It is an arithmetic number, because the mean of its divisors is an integer number (3128136).

Almost surely, 2^16161974 is an apocalyptic number.

16161974 is a deficient number, since it is larger than the sum of its proper divisors (8863114).

16161974 is a wasteful number, since it uses less digits than its factorization.

16161974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260710.

The product of its digits is 9072, while the sum is 35.

The square root of 16161974 is about 4020.1957663776. The cubic root of 16161974 is about 252.8316668891.

The spelling of 16161974 in words is "sixteen million, one hundred sixty-one thousand, nine hundred seventy-four".