171620341 has 2 divisors, whose sum is σ = 171620342. Its totient is φ = 171620340.

The previous prime is 171620279. The next prime is 171620377. The reversal of 171620341 is 143026171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159516900 + 12103441 = 12630^2 + 3479^2 .

It is a cyclic number.

It is not a de Polignac number, because 171620341 - 2⁹ = 171619829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171620041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85810170 + 85810171.

It is an arithmetic number, because the mean of its divisors is an integer number (85810171).

Almost surely, 2^171620341 is an apocalyptic number.

It is an amenable number.

171620341 is a deficient number, since it is larger than the sum of its proper divisors (1).

171620341 is an equidigital number, since it uses as much as digits as its factorization.

171620341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 171620341 is about 13100.3946887107. The cubic root of 171620341 is about 555.7202897983.

The spelling of 171620341 in words is "one hundred seventy-one million, six hundred twenty thousand, three hundred forty-one".