12531046 has 16 divisors (see below), whose sum is σ = 20943360. Its totient is φ = 5574280.

The previous prime is 12531041. The next prime is 12531053. The reversal of 12531046 is 64013521.

It is a super-2 number, since 2×12531046² = 314054227708232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5026 + ... + 7093.

It is an arithmetic number, because the mean of its divisors is an integer number (1308960).

Almost surely, 2^12531046 is an apocalyptic number.

12531046 is a deficient number, since it is larger than the sum of its proper divisors (8412314).

12531046 is a wasteful number, since it uses less digits than its factorization.

12531046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12179.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12531046 is about 3539.9217505476. The cubic root of 12531046 is about 232.2714198534.

Adding to 12531046 its reverse (64013521), we get a palindrome (76544567).

The spelling of 12531046 in words is "twelve million, five hundred thirty-one thousand, forty-six".