17157242 has 16 divisors (see below), whose sum is σ = 26286120. Its totient is φ = 8397312.

The previous prime is 17157193. The next prime is 17157277. The reversal of 17157242 is 24275171.

It can be written as a sum of positive squares in 4 ways, for example, as 2785561 + 14371681 = 1669^2 + 3791^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19688 + ... + 20540.

Almost surely, 2^17157242 is an apocalyptic number.

17157242 is a deficient number, since it is larger than the sum of its proper divisors (9128878).

17157242 is a wasteful number, since it uses less digits than its factorization.

17157242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its digits is 3920, while the sum is 29.

The square root of 17157242 is about 4142.1301283277. The cubic root of 17157242 is about 257.9184987846.

The spelling of 17157242 in words is "seventeen million, one hundred fifty-seven thousand, two hundred forty-two".