13118629 has 2 divisors, whose sum is σ = 13118630. Its totient is φ = 13118628.

The previous prime is 13118603. The next prime is 13118639. The reversal of 13118629 is 92681131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11222500 + 1896129 = 3350^2 + 1377^2 .

It is a cyclic number.

It is not a de Polignac number, because 13118629 - 2⁵ = 13118597 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13118629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13118639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6559314 + 6559315.

It is an arithmetic number, because the mean of its divisors is an integer number (6559315).

Almost surely, 2^13118629 is an apocalyptic number.

It is an amenable number.

13118629 is a deficient number, since it is larger than the sum of its proper divisors (1).

13118629 is an equidigital number, since it uses as much as digits as its factorization.

13118629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 31.

The square root of 13118629 is about 3621.9647982828. The cubic root of 13118629 is about 235.8465259455.

The spelling of 13118629 in words is "thirteen million, one hundred eighteen thousand, six hundred twenty-nine".