171213353 has 2 divisors, whose sum is σ = 171213354. Its totient is φ = 171213352.

The previous prime is 171213349. The next prime is 171213377. The reversal of 171213353 is 353312171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99760144 + 71453209 = 9988^2 + 8453^2 .

It is a cyclic number.

It is not a de Polignac number, because 171213353 - 2² = 171213349 is a prime.

It is not a weakly prime, because it can be changed into another prime (171243353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85606676 + 85606677.

It is an arithmetic number, because the mean of its divisors is an integer number (85606677).

Almost surely, 2^171213353 is an apocalyptic number.

It is an amenable number.

171213353 is a deficient number, since it is larger than the sum of its proper divisors (1).

171213353 is an equidigital number, since it uses as much as digits as its factorization.

171213353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 26.

The square root of 171213353 is about 13084.8520434891. The cubic root of 171213353 is about 555.2806556068.

The spelling of 171213353 in words is "one hundred seventy-one million, two hundred thirteen thousand, three hundred fifty-three".