13056719 has 4 divisors (see below), whose sum is σ = 14061096. Its totient is φ = 12052344.

The previous prime is 13056691. The next prime is 13056749. The reversal of 13056719 is 91765031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91765031 = 17 ⋅5397943.

It is a cyclic number.

It is not a de Polignac number, because 13056719 - 2¹² = 13052623 is a prime.

It is a super-2 number, since 2×13056719² = 340955822089922, 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 (13056749) 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, 502169 + ... + 502194.

It is an arithmetic number, because the mean of its divisors is an integer number (3515274).

Almost surely, 2^13056719 is an apocalyptic number.

13056719 is a deficient number, since it is larger than the sum of its proper divisors (1004377).

13056719 is a wasteful number, since it uses less digits than its factorization.

13056719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004376.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 13056719 is about 3613.4082249311. The cubic root of 13056719 is about 235.4749350881.

The spelling of 13056719 in words is "thirteen million, fifty-six thousand, seven hundred nineteen".