172109341 has 2 divisors, whose sum is σ = 172109342. Its totient is φ = 172109340.

The previous prime is 172109323. The next prime is 172109351. The reversal of 172109341 is 143901271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157402116 + 14707225 = 12546^2 + 3835^2 .

It is a cyclic number.

It is not a de Polignac number, because 172109341 - 2⁹ = 172108829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172109351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86054670 + 86054671.

It is an arithmetic number, because the mean of its divisors is an integer number (86054671).

Almost surely, 2^172109341 is an apocalyptic number.

It is an amenable number.

172109341 is a deficient number, since it is larger than the sum of its proper divisors (1).

172109341 is an equidigital number, since it uses as much as digits as its factorization.

172109341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 172109341 is about 13119.0449728629. The cubic root of 172109341 is about 556.2475962359.

The spelling of 172109341 in words is "one hundred seventy-two million, one hundred nine thousand, three hundred forty-one".