12522746 has 4 divisors (see below), whose sum is σ = 18784122. Its totient is φ = 6261372.

The previous prime is 12522743. The next prime is 12522779. The reversal of 12522746 is 64722521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64722521 = 311 ⋅208111.

It can be written as a sum of positive squares in only one way, i.e., 6446521 + 6076225 = 2539^2 + 2465^2 .

It is not an unprimeable number, because it can be changed into a prime (12522743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3130685 + ... + 3130688.

Almost surely, 2^12522746 is an apocalyptic number.

12522746 is a deficient number, since it is larger than the sum of its proper divisors (6261376).

12522746 is an equidigital number, since it uses as much as digits as its factorization.

12522746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6261375.

The product of its digits is 6720, while the sum is 29.

The square root of 12522746 is about 3538.7492140585. The cubic root of 12522746 is about 232.2201264875.

The spelling of 12522746 in words is "twelve million, five hundred twenty-two thousand, seven hundred forty-six".