17139419 has 4 divisors (see below), whose sum is σ = 18697560. Its totient is φ = 15581280.

The previous prime is 17139403. The next prime is 17139449. The reversal of 17139419 is 91493171.

It is a happy number.

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

It is not a de Polignac number, because 17139419 - 2⁴ = 17139403 is a prime.

It is a super-2 number, since 2×17139419² = 587519367315122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17139449) 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, 779054 + ... + 779075.

It is an arithmetic number, because the mean of its divisors is an integer number (4674390).

Almost surely, 2^17139419 is an apocalyptic number.

17139419 is a deficient number, since it is larger than the sum of its proper divisors (1558141).

17139419 is a wasteful number, since it uses less digits than its factorization.

17139419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558140.

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

The square root of 17139419 is about 4139.9781400389. The cubic root of 17139419 is about 257.8291589774.

The spelling of 17139419 in words is "seventeen million, one hundred thirty-nine thousand, four hundred nineteen".