171040313 has 2 divisors, whose sum is σ = 171040314. Its totient is φ = 171040312.

The previous prime is 171040277. The next prime is 171040319. The reversal of 171040313 is 313040171.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153834409 + 17205904 = 12403^2 + 4148^2 .

It is a cyclic number.

It is not a de Polignac number, because 171040313 - 2¹⁸ = 170778169 is a prime.

It is a super-2 number, since 2×171040313² = 58509577342275938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (171040319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85520156 + 85520157.

It is an arithmetic number, because the mean of its divisors is an integer number (85520157).

Almost surely, 2^171040313 is an apocalyptic number.

It is an amenable number.

171040313 is a deficient number, since it is larger than the sum of its proper divisors (1).

171040313 is an equidigital number, since it uses as much as digits as its factorization.

171040313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 171040313 is about 13078.2381458666. The cubic root of 171040313 is about 555.0935242656.

Adding to 171040313 its reverse (313040171), we get a palindrome (484080484).

The spelling of 171040313 in words is "one hundred seventy-one million, forty thousand, three hundred thirteen".