17142394 has 4 divisors (see below), whose sum is σ = 25713594. Its totient is φ = 8571196.

The previous prime is 17142361. The next prime is 17142401. The reversal of 17142394 is 49324171.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16916769 + 225625 = 4113^2 + 475^2 .

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, 4285597 + ... + 4285600.

Almost surely, 2^17142394 is an apocalyptic number.

17142394 is a deficient number, since it is larger than the sum of its proper divisors (8571200).

17142394 is an equidigital number, since it uses as much as digits as its factorization.

17142394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8571199.

The product of its digits is 6048, while the sum is 31.

The square root of 17142394 is about 4140.3374258628. The cubic root of 17142394 is about 257.8440758069.

The spelling of 17142394 in words is "seventeen million, one hundred forty-two thousand, three hundred ninety-four".