12512031 has 16 divisors (see below), whose sum is σ = 19582464. Its totient is φ = 6956064.

The previous prime is 12512029. The next prime is 12512033. The reversal of 12512031 is 13021521.

It is an interprime number because it is at equal distance from previous prime (12512029) and next prime (12512033).

It is not a de Polignac number, because 12512031 - 2¹ = 12512029 is a prime.

It is a super-2 number, since 2×12512031² = 313101839489922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12512031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512033) 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 in 15 ways as a sum of consecutive naturals, for example, 7275 + ... + 8828.

It is an arithmetic number, because the mean of its divisors is an integer number (1223904).

Almost surely, 2^12512031 is an apocalyptic number.

12512031 is a deficient number, since it is larger than the sum of its proper divisors (7070433).

12512031 is a wasteful number, since it uses less digits than its factorization.

12512031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16150.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12512031 is about 3537.2349370660. The cubic root of 12512031 is about 232.1538750792.

Adding to 12512031 its reverse (13021521), we get a palindrome (25533552).

The spelling of 12512031 in words is "twelve million, five hundred twelve thousand, thirty-one".