172145341 has 2 divisors, whose sum is σ = 172145342. Its totient is φ = 172145340.

The previous prime is 172145333. The next prime is 172145353. The reversal of 172145341 is 143541271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114704100 + 57441241 = 10710^2 + 7579^2 .

It is a cyclic number.

It is not a de Polignac number, because 172145341 - 2³ = 172145333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172145741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86072670 + 86072671.

It is an arithmetic number, because the mean of its divisors is an integer number (86072671).

Almost surely, 2^172145341 is an apocalyptic number.

It is an amenable number.

172145341 is a deficient number, since it is larger than the sum of its proper divisors (1).

172145341 is an equidigital number, since it uses as much as digits as its factorization.

172145341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 172145341 is about 13120.4169522161. The cubic root of 172145341 is about 556.2863768492.

The spelling of 172145341 in words is "one hundred seventy-two million, one hundred forty-five thousand, three hundred forty-one".