12250531 has 4 divisors (see below), whose sum is σ = 12267472. Its totient is φ = 12233592.

The previous prime is 12250519. The next prime is 12250541. The reversal of 12250531 is 13505221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13505221 = 359 ⋅37619.

It is a cyclic number.

It is not a de Polignac number, because 12250531 - 2⁹ = 12250019 is a prime.

It is a super-2 number, since 2×12250531² = 300151019563922, 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 = 12250499 and 12250508.

It is not an unprimeable number, because it can be changed into a prime (12250501) 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, 7335 + ... + 8848.

It is an arithmetic number, because the mean of its divisors is an integer number (3066868).

Almost surely, 2^12250531 is an apocalyptic number.

12250531 is a deficient number, since it is larger than the sum of its proper divisors (16941).

12250531 is an equidigital number, since it uses as much as digits as its factorization.

12250531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16940.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 12250531 is about 3500.0758563208. The cubic root of 12250531 is about 230.5251453598.

Adding to 12250531 its reverse (13505221), we get a palindrome (25755752).

It can be divided in two parts, 122 and 50531, that added together give a cube (50653 = 37³).

The spelling of 12250531 in words is "twelve million, two hundred fifty thousand, five hundred thirty-one".