17142287 has 8 divisors (see below), whose sum is σ = 17743872. Its totient is φ = 16543800.

The previous prime is 17142271. The next prime is 17142319. The reversal of 17142287 is 78224171.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 17142287 - 2⁴ = 17142271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17144287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18362 + ... + 19272.

It is an arithmetic number, because the mean of its divisors is an integer number (2217984).

Almost surely, 2^17142287 is an apocalyptic number.

17142287 is a deficient number, since it is larger than the sum of its proper divisors (601585).

17142287 is an equidigital number, since it uses as much as digits as its factorization.

17142287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549.

The product of its digits is 6272, while the sum is 32.

The square root of 17142287 is about 4140.3245041905. The cubic root of 17142287 is about 257.8435393324.

The spelling of 17142287 in words is "seventeen million, one hundred forty-two thousand, two hundred eighty-seven".