170119121 has 2 divisors, whose sum is σ = 170119122. Its totient is φ = 170119120.

The previous prime is 170119099. The next prime is 170119163. The reversal of 170119121 is 121911071.

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., 167987521 + 2131600 = 12961^2 + 1460^2 .

It is an emirp because it is prime and its reverse (121911071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 170119121 - 2¹⁸ = 169856977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (170119721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85059560 + 85059561.

It is an arithmetic number, because the mean of its divisors is an integer number (85059561).

Almost surely, 2^170119121 is an apocalyptic number.

It is an amenable number.

170119121 is a deficient number, since it is larger than the sum of its proper divisors (1).

170119121 is an equidigital number, since it uses as much as digits as its factorization.

170119121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 23.

The square root of 170119121 is about 13042.9720922802. The cubic root of 170119121 is about 554.0951855892.

The spelling of 170119121 in words is "one hundred seventy million, one hundred nineteen thousand, one hundred twenty-one".