13712522 has 4 divisors (see below), whose sum is σ = 20568786. Its totient is φ = 6856260.

The previous prime is 13712483. The next prime is 13712551. The reversal of 13712522 is 22521731.

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: 22521731 = 2857 ⋅7883.

It can be written as a sum of positive squares in only one way, i.e., 8185321 + 5527201 = 2861^2 + 2351^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3428129 + ... + 3428132.

Almost surely, 2^13712522 is an apocalyptic number.

13712522 is a deficient number, since it is larger than the sum of its proper divisors (6856264).

13712522 is an equidigital number, since it uses as much as digits as its factorization.

13712522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856263.

The product of its digits is 840, while the sum is 23.

The square root of 13712522 is about 3703.0422627888. The cubic root of 13712522 is about 239.3531307523.

The spelling of 13712522 in words is "thirteen million, seven hundred twelve thousand, five hundred twenty-two".