13315019 has 4 divisors (see below), whose sum is σ = 13533360. Its totient is φ = 13096680.

The previous prime is 13315007. The next prime is 13315021. The reversal of 13315019 is 91051331.

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-13315019 is a prime.

It is a super-2 number, since 2×13315019² = 354579461940722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13314985 and 13315003.

It is not an unprimeable number, because it can be changed into a prime (13315039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109079 + ... + 109200.

It is an arithmetic number, because the mean of its divisors is an integer number (3383340).

Almost surely, 2^13315019 is an apocalyptic number.

13315019 is a deficient number, since it is larger than the sum of its proper divisors (218341).

13315019 is an equidigital number, since it uses as much as digits as its factorization.

13315019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218340.

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 13315019 is about 3648.9750615755. The cubic root of 13315019 is about 237.0176003356.

The spelling of 13315019 in words is "thirteen million, three hundred fifteen thousand, nineteen".