17913139 has 2 divisors, whose sum is σ = 17913140. Its totient is φ = 17913138.

The previous prime is 17913127. The next prime is 17913151. The reversal of 17913139 is 93131971.

It is a balanced prime because it is at equal distance from previous prime (17913127) and next prime (17913151).

It is a cyclic number.

It is not a de Polignac number, because 17913139 - 2⁵ = 17913107 is a prime.

It is a zygodrome in base 16.

It is not a weakly prime, because it can be changed into another prime (17913109) 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 as a sum of consecutive naturals, namely, 8956569 + 8956570.

It is an arithmetic number, because the mean of its divisors is an integer number (8956570).

Almost surely, 2^17913139 is an apocalyptic number.

17913139 is a deficient number, since it is larger than the sum of its proper divisors (1).

17913139 is an equidigital number, since it uses as much as digits as its factorization.

17913139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5103, while the sum is 34.

The square root of 17913139 is about 4232.3916406684. The cubic root of 17913139 is about 261.6519035491.

Subtracting from 17913139 its sum of digits (34), we obtain a triangular number (17913105 = T₅₉₈₅).

The spelling of 17913139 in words is "seventeen million, nine hundred thirteen thousand, one hundred thirty-nine".