17142971 has 4 divisors (see below), whose sum is σ = 17151552. Its totient is φ = 17134392.

The previous prime is 17142949. The next prime is 17142977. The reversal of 17142971 is 17924171.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17924171 = 17 ⋅1054363.

It is a cyclic number.

It is not a de Polignac number, because 17142971 - 2¹⁴ = 17126587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17142977) 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, 461 + ... + 5873.

It is an arithmetic number, because the mean of its divisors is an integer number (4287888).

Almost surely, 2^17142971 is an apocalyptic number.

17142971 is a deficient number, since it is larger than the sum of its proper divisors (8581).

17142971 is an equidigital number, since it uses as much as digits as its factorization.

17142971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8580.

The product of its digits is 3528, while the sum is 32.

The square root of 17142971 is about 4140.4071055876. The cubic root of 17142971 is about 257.8469687199.

The spelling of 17142971 in words is "seventeen million, one hundred forty-two thousand, nine hundred seventy-one".