12150431 has 2 divisors, whose sum is σ = 12150432. Its totient is φ = 12150430.

The previous prime is 12150421. The next prime is 12150451. The reversal of 12150431 is 13405121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12150431 is a prime.

It is a super-2 number, since 2×12150431² = 295265946971522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12150421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6075215 + 6075216.

It is an arithmetic number, because the mean of its divisors is an integer number (6075216).

Almost surely, 2^12150431 is an apocalyptic number.

12150431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12150431 is an equidigital number, since it uses as much as digits as its factorization.

12150431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12150431 is about 3485.7468353281. The cubic root of 12150431 is about 229.8955480346.

Adding to 12150431 its reverse (13405121), we get a palindrome (25555552).

The spelling of 12150431 in words is "twelve million, one hundred fifty thousand, four hundred thirty-one".