13152779 has 2 divisors, whose sum is σ = 13152780. Its totient is φ = 13152778.

The previous prime is 13152751. The next prime is 13152787. The reversal of 13152779 is 97725131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13152779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13152719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6576389 + 6576390.

It is an arithmetic number, because the mean of its divisors is an integer number (6576390).

Almost surely, 2^13152779 is an apocalyptic number.

13152779 is a deficient number, since it is larger than the sum of its proper divisors (1).

13152779 is an equidigital number, since it uses as much as digits as its factorization.

13152779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 35.

The square root of 13152779 is about 3626.6760263360. The cubic root of 13152779 is about 236.0509980280.

It can be divided in two parts, 13152 and 779, that added together give a palindrome (13931).

The spelling of 13152779 in words is "thirteen million, one hundred fifty-two thousand, seven hundred seventy-nine".