17252161 has 4 divisors (see below), whose sum is σ = 18267012. Its totient is φ = 16237312.

The previous prime is 17252141. The next prime is 17252167. The reversal of 17252161 is 16125271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16125271 = 3631 ⋅4441.

It can be written as a sum of positive squares in 2 ways, for example, as 16000000 + 1252161 = 4000^2 + 1119^2 .

It is not a de Polignac number, because 17252161 - 2⁷ = 17252033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17252167) 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, 507400 + ... + 507433.

It is an arithmetic number, because the mean of its divisors is an integer number (4566753).

Almost surely, 2^17252161 is an apocalyptic number.

It is an amenable number.

17252161 is a deficient number, since it is larger than the sum of its proper divisors (1014851).

17252161 is a wasteful number, since it uses less digits than its factorization.

17252161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014850.

The product of its digits is 840, while the sum is 25.

The square root of 17252161 is about 4153.5720771403. The cubic root of 17252161 is about 258.3932518199.

The spelling of 17252161 in words is "seventeen million, two hundred fifty-two thousand, one hundred sixty-one".