12422451 has 4 divisors (see below), whose sum is σ = 16563272. Its totient is φ = 8281632.

The previous prime is 12422441. The next prime is 12422453. The reversal of 12422451 is 15422421.

12422451 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

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

It is not a de Polignac number, because 12422451 - 2¹⁰ = 12421427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12422453) 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, 2070406 + ... + 2070411.

It is an arithmetic number, because the mean of its divisors is an integer number (4140818).

Almost surely, 2^12422451 is an apocalyptic number.

12422451 is a deficient number, since it is larger than the sum of its proper divisors (4140821).

12422451 is an equidigital number, since it uses as much as digits as its factorization.

12422451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140820.

The product of its digits is 640, while the sum is 21.

The square root of 12422451 is about 3524.5497584798. The cubic root of 12422451 is about 231.5985116582.

Adding to 12422451 its reverse (15422421), we get a palindrome (27844872).

The spelling of 12422451 in words is "twelve million, four hundred twenty-two thousand, four hundred fifty-one".