16170493 has 2 divisors, whose sum is σ = 16170494. Its totient is φ = 16170492.

The previous prime is 16170481. The next prime is 16170527. The reversal of 16170493 is 39407161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15705369 + 465124 = 3963^2 + 682^2 .

It is an emirp because it is prime and its reverse (39407161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16170493 - 2⁵ = 16170461 is a prime.

It is a super-2 number, since 2×16170493² = 522969687726098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16170293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8085246 + 8085247.

It is an arithmetic number, because the mean of its divisors is an integer number (8085247).

Almost surely, 2^16170493 is an apocalyptic number.

It is an amenable number.

16170493 is a deficient number, since it is larger than the sum of its proper divisors (1).

16170493 is an equidigital number, since it uses as much as digits as its factorization.

16170493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 16170493 is about 4021.2551523125. The cubic root of 16170493 is about 252.8760817328.

The spelling of 16170493 in words is "sixteen million, one hundred seventy thousand, four hundred ninety-three".