12252531 has 4 divisors (see below), whose sum is σ = 16336712. Its totient is φ = 8168352.

The previous prime is 12252523. The next prime is 12252551. The reversal of 12252531 is 13525221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12252531 - 2³ = 12252523 is a prime.

It is a super-2 number, since 2×12252531² = 300249031811922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12252498 and 12252507.

It is not an unprimeable number, because it can be changed into a prime (12252551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042086 + ... + 2042091.

It is an arithmetic number, because the mean of its divisors is an integer number (4084178).

Almost surely, 2^12252531 is an apocalyptic number.

12252531 is a deficient number, since it is larger than the sum of its proper divisors (4084181).

12252531 is an equidigital number, since it uses as much as digits as its factorization.

12252531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084180.

The product of its digits is 600, while the sum is 21.

The square root of 12252531 is about 3500.3615527542. The cubic root of 12252531 is about 230.5376897195.

Adding to 12252531 its reverse (13525221), we get a palindrome (25777752).

The spelling of 12252531 in words is "twelve million, two hundred fifty-two thousand, five hundred thirty-one".