13149679 has 2 divisors, whose sum is σ = 13149680. Its totient is φ = 13149678.

The previous prime is 13149677. The next prime is 13149713. The reversal of 13149679 is 97694131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13149679 - 2¹ = 13149677 is a prime.

Together with 13149677, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13149677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6574839 + 6574840.

It is an arithmetic number, because the mean of its divisors is an integer number (6574840).

Almost surely, 2^13149679 is an apocalyptic number.

13149679 is a deficient number, since it is larger than the sum of its proper divisors (1).

13149679 is an equidigital number, since it uses as much as digits as its factorization.

13149679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 40.

The square root of 13149679 is about 3626.2486125471. The cubic root of 13149679 is about 236.0324514889.

The spelling of 13149679 in words is "thirteen million, one hundred forty-nine thousand, six hundred seventy-nine".