131043412 has 12 divisors (see below), whose sum is σ = 242815860. Its totient is φ = 61667456.

The previous prime is 131043391. The next prime is 131043413. The reversal of 131043412 is 214340131.

It can be written as a sum of positive squares in 2 ways, for example, as 76667536 + 54375876 = 8756^2 + 7374^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131043412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131043413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963487 + ... + 963622.

It is an arithmetic number, because the mean of its divisors is an integer number (20234655).

Almost surely, 2^131043412 is an apocalyptic number.

It is an amenable number.

131043412 is a deficient number, since it is larger than the sum of its proper divisors (111772448).

131043412 is a wasteful number, since it uses less digits than its factorization.

131043412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927130 (or 1927128 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131043412 is about 11447.4194471942. The cubic root of 131043412 is about 507.9314031004.

Adding to 131043412 its reverse (214340131), we get a palindrome (345383543).

The spelling of 131043412 in words is "one hundred thirty-one million, forty-three thousand, four hundred twelve".