12131474 has 8 divisors (see below), whose sum is σ = 18217548. Its totient is φ = 6058960.

The previous prime is 12131473. The next prime is 12131507. The reversal of 12131474 is 47413121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11950849 + 180625 = 3457^2 + 425^2 .

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

It is a super-2 number, since 2×12131474² = 294345322825352, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12131473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737 + ... + 4980.

Almost surely, 2^12131474 is an apocalyptic number.

12131474 is a deficient number, since it is larger than the sum of its proper divisors (6086074).

12131474 is a wasteful number, since it uses less digits than its factorization.

12131474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780.

The product of its digits is 672, while the sum is 23.

The square root of 12131474 is about 3483.0265574641. The cubic root of 12131474 is about 229.7759254364.

Adding to 12131474 its reverse (47413121), we get a palindrome (59544595).

The spelling of 12131474 in words is "twelve million, one hundred thirty-one thousand, four hundred seventy-four".