170265493 has 2 divisors, whose sum is σ = 170265494. Its totient is φ = 170265492.

The previous prime is 170265463. The next prime is 170265499. The reversal of 170265493 is 394562071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165842884 + 4422609 = 12878^2 + 2103^2 .

It is an emirp because it is prime and its reverse (394562071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 170265493 - 2¹⁷ = 170134421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170265499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85132746 + 85132747.

It is an arithmetic number, because the mean of its divisors is an integer number (85132747).

Almost surely, 2^170265493 is an apocalyptic number.

It is an amenable number.

170265493 is a deficient number, since it is larger than the sum of its proper divisors (1).

170265493 is an equidigital number, since it uses as much as digits as its factorization.

170265493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 170265493 is about 13048.5820302437. The cubic root of 170265493 is about 554.2540561702.

The spelling of 170265493 in words is "one hundred seventy million, two hundred sixty-five thousand, four hundred ninety-three".