8131412 has 6 divisors (see below), whose sum is σ = 14229978. Its totient is φ = 4065704.

The previous prime is 8131399. The next prime is 8131421. The reversal of 8131412 is 2141318.

It can be written as a sum of positive squares in only one way, i.e., 8031556 + 99856 = 2834^2 + 316^2 .

It is a super-2 number, since 2×8131412² = 132239722227488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1016423 + ... + 1016430.

It is an arithmetic number, because the mean of its divisors is an integer number (2371663).

Almost surely, 2^8131412 is an apocalyptic number.

It is an amenable number.

8131412 is a deficient number, since it is larger than the sum of its proper divisors (6098566).

8131412 is a wasteful number, since it uses less digits than its factorization.

8131412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032857 (or 2032855 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 8131412 is about 2851.5630801369. The cubic root of 8131412 is about 201.0891579083.

The spelling of 8131412 in words is "eight million, one hundred thirty-one thousand, four hundred twelve".