12422507 has 8 divisors (see below), whose sum is σ = 12999840. Its totient is φ = 11870760.

The previous prime is 12422471. The next prime is 12422533. The reversal of 12422507 is 70522421.

It is a happy number.

It is not a de Polignac number, because 12422507 - 2¹² = 12418411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12422407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11657 + ... + 12677.

It is an arithmetic number, because the mean of its divisors is an integer number (1624980).

Almost surely, 2^12422507 is an apocalyptic number.

12422507 is a deficient number, since it is larger than the sum of its proper divisors (577333).

12422507 is an frugal number, since it uses more digits than its factorization.

12422507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 12422507 is about 3524.5577027480. The cubic root of 12422507 is about 231.5988596705.

Adding to 12422507 its reverse (70522421), we get a palindrome (82944928).

The spelling of 12422507 in words is "twelve million, four hundred twenty-two thousand, five hundred seven".