12522442 has 8 divisors (see below), whose sum is σ = 19600416. Its totient is φ = 5988972.

The previous prime is 12522439. The next prime is 12522443. The reversal of 12522442 is 24422521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12522443) 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, 136068 + ... + 136159.

It is an arithmetic number, because the mean of its divisors is an integer number (2450052).

Almost surely, 2^12522442 is an apocalyptic number.

12522442 is a deficient number, since it is larger than the sum of its proper divisors (7077974).

12522442 is a wasteful number, since it uses less digits than its factorization.

12522442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272252.

The product of its digits is 1280, while the sum is 22.

The square root of 12522442 is about 3538.7062607682. The cubic root of 12522442 is about 232.2182473605.

Adding to 12522442 its reverse (24422521), we get a palindrome (36944963).

The spelling of 12522442 in words is "twelve million, five hundred twenty-two thousand, four hundred forty-two".