17139572 has 6 divisors (see below), whose sum is σ = 29994258. Its totient is φ = 8569784.

The previous prime is 17139569. The next prime is 17139589. The reversal of 17139572 is 27593171.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9265936 + 7873636 = 3044^2 + 2806^2 .

It is a congruent number.

It is an unprimeable number.

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, 2142443 + ... + 2142450.

It is an arithmetic number, because the mean of its divisors is an integer number (4999043).

Almost surely, 2^17139572 is an apocalyptic number.

It is an amenable number.

17139572 is a deficient number, since it is larger than the sum of its proper divisors (12854686).

17139572 is a wasteful number, since it uses less digits than its factorization.

17139572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284897 (or 4284895 counting only the distinct ones).

The product of its digits is 13230, while the sum is 35.

The square root of 17139572 is about 4139.9966183561. The cubic root of 17139572 is about 257.8299261707.

The spelling of 17139572 in words is "seventeen million, one hundred thirty-nine thousand, five hundred seventy-two".