12451243 has 16 divisors (see below), whose sum is σ = 15001600. Its totient is φ = 10319400.

The previous prime is 12451223. The next prime is 12451253. The reversal of 12451243 is 34215421.

It is not a de Polignac number, because 12451243 - 2⁹ = 12450731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12451223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10048 + ... + 11218.

It is an arithmetic number, because the mean of its divisors is an integer number (937600).

Almost surely, 2^12451243 is an apocalyptic number.

12451243 is a deficient number, since it is larger than the sum of its proper divisors (2550357).

12451243 is an equidigital number, since it uses as much as digits as its factorization.

12451243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223 (or 1209 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 12451243 is about 3528.6318878568. The cubic root of 12451243 is about 231.7773019057. Note that the first 3 decimals are identical.

Adding to 12451243 its reverse (34215421), we get a palindrome (46666664).

The spelling of 12451243 in words is "twelve million, four hundred fifty-one thousand, two hundred forty-three".