12531026 has 4 divisors (see below), whose sum is σ = 18796542. Its totient is φ = 6265512.

The previous prime is 12531019. The next prime is 12531041. The reversal of 12531026 is 62013521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62013521 = 2459 ⋅25219.

It can be written as a sum of positive squares in only one way, i.e., 11323225 + 1207801 = 3365^2 + 1099^2 .

It is a super-2 number, since 2×12531026² = 314053225225352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12530989 and 12531007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3132755 + ... + 3132758.

Almost surely, 2^12531026 is an apocalyptic number.

12531026 is a deficient number, since it is larger than the sum of its proper divisors (6265516).

12531026 is an equidigital number, since it uses as much as digits as its factorization.

12531026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265515.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12531026 is about 3539.9189256253. The cubic root of 12531026 is about 232.2712962821.

Adding to 12531026 its reverse (62013521), we get a palindrome (74544547).

The spelling of 12531026 in words is "twelve million, five hundred thirty-one thousand, twenty-six".