13149719 has 4 divisors (see below), whose sum is σ = 14345160. Its totient is φ = 11954280.

The previous prime is 13149713. The next prime is 13149751. The reversal of 13149719 is 91794131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13149719 is a prime.

It is a super-2 number, since 2×13149719² = 345830219557922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13149713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597704 + ... + 597725.

It is an arithmetic number, because the mean of its divisors is an integer number (3586290).

Almost surely, 2^13149719 is an apocalyptic number.

13149719 is a deficient number, since it is larger than the sum of its proper divisors (1195441).

13149719 is a wasteful number, since it uses less digits than its factorization.

13149719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195440.

The product of its digits is 6804, while the sum is 35.

The square root of 13149719 is about 3626.2541278846. The cubic root of 13149719 is about 236.0326908176.

The spelling of 13149719 in words is "thirteen million, one hundred forty-nine thousand, seven hundred nineteen".