170144459 has 2 divisors, whose sum is σ = 170144460. Its totient is φ = 170144458.

The previous prime is 170144417. The next prime is 170144473. The reversal of 170144459 is 954441071.

It is a strong prime.

It is an emirp because it is prime and its reverse (954441071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 170144459 - 2¹² = 170140363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (170144159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85072229 + 85072230.

It is an arithmetic number, because the mean of its divisors is an integer number (85072230).

Almost surely, 2^170144459 is an apocalyptic number.

170144459 is a deficient number, since it is larger than the sum of its proper divisors (1).

170144459 is an equidigital number, since it uses as much as digits as its factorization.

170144459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 170144459 is about 13043.9433838084. The cubic root of 170144459 is about 554.1226936999.

The spelling of 170144459 in words is "one hundred seventy million, one hundred forty-four thousand, four hundred fifty-nine".