171242707 has 2 divisors, whose sum is σ = 171242708. Its totient is φ = 171242706.

The previous prime is 171242689. The next prime is 171242711. The reversal of 171242707 is 707242171.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 171242707 - 2¹⁹ = 170718419 is a prime.

It is not a weakly prime, because it can be changed into another prime (171242737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85621353 + 85621354.

It is an arithmetic number, because the mean of its divisors is an integer number (85621354).

Almost surely, 2^171242707 is an apocalyptic number.

171242707 is a deficient number, since it is larger than the sum of its proper divisors (1).

171242707 is an equidigital number, since it uses as much as digits as its factorization.

171242707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 171242707 is about 13085.9736741291. The cubic root of 171242707 is about 555.3123875106.

Adding to 171242707 its reverse (707242171), we get a palindrome (878484878).

The spelling of 171242707 in words is "one hundred seventy-one million, two hundred forty-two thousand, seven hundred seven".