13122628 has 6 divisors (see below), whose sum is σ = 22964606. Its totient is φ = 6561312.

The previous prime is 13122607. The next prime is 13122631. The reversal of 13122628 is 82622131.

It can be written as a sum of positive squares in only one way, i.e., 12166144 + 956484 = 3488^2 + 978^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1640325 + ... + 1640332.

Almost surely, 2^13122628 is an apocalyptic number.

It is an amenable number.

13122628 is a deficient number, since it is larger than the sum of its proper divisors (9841978).

13122628 is a wasteful number, since it uses less digits than its factorization.

13122628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280661 (or 3280659 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 13122628 is about 3622.5168046539. The cubic root of 13122628 is about 235.8704881659.

Adding to 13122628 its reverse (82622131), we get a palindrome (95744759).

The spelling of 13122628 in words is "thirteen million, one hundred twenty-two thousand, six hundred twenty-eight".