13122751 has 2 divisors, whose sum is σ = 13122752. Its totient is φ = 13122750.

The previous prime is 13122737. The next prime is 13122757. The reversal of 13122751 is 15722131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13122751 - 2¹¹ = 13120703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13122757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561375 + 6561376.

It is an arithmetic number, because the mean of its divisors is an integer number (6561376).

Almost surely, 2^13122751 is an apocalyptic number.

13122751 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122751 is an equidigital number, since it uses as much as digits as its factorization.

13122751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 22.

The square root of 13122751 is about 3622.5337817610. The cubic root of 13122751 is about 235.8712251113.

Adding to 13122751 its reverse (15722131), we get a palindrome (28844882).

The spelling of 13122751 in words is "thirteen million, one hundred twenty-two thousand, seven hundred fifty-one".