171202253 has 2 divisors, whose sum is σ = 171202254. Its totient is φ = 171202252.

The previous prime is 171202193. The next prime is 171202261. The reversal of 171202253 is 352202171.

It is a happy number.

171202253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164301124 + 6901129 = 12818^2 + 2627^2 .

It is an emirp because it is prime and its reverse (352202171) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171202253 is a prime.

It is a super-2 number, since 2×171202253² = 58620422864552018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171202753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85601126 + 85601127.

It is an arithmetic number, because the mean of its divisors is an integer number (85601127).

Almost surely, 2^171202253 is an apocalyptic number.

It is an amenable number.

171202253 is a deficient number, since it is larger than the sum of its proper divisors (1).

171202253 is an equidigital number, since it uses as much as digits as its factorization.

171202253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 171202253 is about 13084.4278820283. The cubic root of 171202253 is about 555.2686554749.

The spelling of 171202253 in words is "one hundred seventy-one million, two hundred two thousand, two hundred fifty-three".