12142522 has 32 divisors (see below), whose sum is σ = 22246272. Its totient is φ = 4852224.

The previous prime is 12142517. The next prime is 12142531. The reversal of 12142522 is 22524121.

It is a self number, because there is not a number n which added to its sum of digits gives 12142522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38638 + ... + 38950.

It is an arithmetic number, because the mean of its divisors is an integer number (695196).

Almost surely, 2^12142522 is an apocalyptic number.

12142522 is a deficient number, since it is larger than the sum of its proper divisors (10103750).

12142522 is a wasteful number, since it uses less digits than its factorization.

12142522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502.

The product of its digits is 320, while the sum is 19.

The square root of 12142522 is about 3484.6121735424. The cubic root of 12142522 is about 229.8456557429.

Adding to 12142522 its reverse (22524121), we get a palindrome (34666643).

The spelling of 12142522 in words is "twelve million, one hundred forty-two thousand, five hundred twenty-two".