171434401 has 2 divisors, whose sum is σ = 171434402. Its totient is φ = 171434400.

The previous prime is 171434369. The next prime is 171434411. The reversal of 171434401 is 104434171.

It is a happy number.

171434401 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., 163226176 + 8208225 = 12776^2 + 2865^2 .

It is an emirp because it is prime and its reverse (104434171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 171434401 - 2⁵ = 171434369 is a prime.

It is not a weakly prime, because it can be changed into another prime (171434411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85717200 + 85717201.

It is an arithmetic number, because the mean of its divisors is an integer number (85717201).

Almost surely, 2^171434401 is an apocalyptic number.

171434401 is the 5856-th centered decagonal number.

It is an amenable number.

171434401 is a deficient number, since it is larger than the sum of its proper divisors (1).

171434401 is an equidigital number, since it uses as much as digits as its factorization.

171434401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 171434401 is about 13093.2960327031. The cubic root of 171434401 is about 555.5195211132.

Adding to 171434401 its reverse (104434171), we get a palindrome (275868572).

The spelling of 171434401 in words is "one hundred seventy-one million, four hundred thirty-four thousand, four hundred one".