12507031 has 2 divisors, whose sum is σ = 12507032. Its totient is φ = 12507030.

The previous prime is 12506983. The next prime is 12507037. The reversal of 12507031 is 13070521.

It is a strong prime.

It is an emirp because it is prime and its reverse (13070521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12507031 - 2⁹ = 12506519 is a prime.

It is a super-2 number, since 2×12507031² = 312851648869922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12507037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253515 + 6253516.

It is an arithmetic number, because the mean of its divisors is an integer number (6253516).

Almost surely, 2^12507031 is an apocalyptic number.

12507031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12507031 is an equidigital number, since it uses as much as digits as its factorization.

12507031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 12507031 is about 3536.5280997046. The cubic root of 12507031 is about 232.1229468728.

Adding to 12507031 its reverse (13070521), we get a palindrome (25577552).

It can be divided in two parts, 1250 and 7031, that added together give a square (8281 = 91²).

The spelling of 12507031 in words is "twelve million, five hundred seven thousand, thirty-one".