12161974 has 32 divisors (see below), whose sum is σ = 20837376. Its totient is φ = 5274720.

The previous prime is 12161927. The next prime is 12161977. The reversal of 12161974 is 47916121.

It is a super-2 number, since 2×12161974² = 295827223153352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54427 + ... + 54649.

It is an arithmetic number, because the mean of its divisors is an integer number (651168).

Almost surely, 2^12161974 is an apocalyptic number.

12161974 is a deficient number, since it is larger than the sum of its proper divisors (8675402).

12161974 is a wasteful number, since it uses less digits than its factorization.

12161974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its digits is 3024, while the sum is 31.

The square root of 12161974 is about 3487.4021850082. The cubic root of 12161974 is about 229.9683258210.

The spelling of 12161974 in words is "twelve million, one hundred sixty-one thousand, nine hundred seventy-four".