172095841 has 2 divisors, whose sum is σ = 172095842. Its totient is φ = 172095840.

The previous prime is 172095839. The next prime is 172095857. The reversal of 172095841 is 148590271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96040000 + 76055841 = 9800^2 + 8721^2 .

It is a cyclic number.

It is not a de Polignac number, because 172095841 - 2¹ = 172095839 is a prime.

Together with 172095839, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 172095841.

It is not a weakly prime, because it can be changed into another prime (172095871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86047920 + 86047921.

It is an arithmetic number, because the mean of its divisors is an integer number (86047921).

Almost surely, 2^172095841 is an apocalyptic number.

It is an amenable number.

172095841 is a deficient number, since it is larger than the sum of its proper divisors (1).

172095841 is an equidigital number, since it uses as much as digits as its factorization.

172095841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 172095841 is about 13118.5304436130. The cubic root of 172095841 is about 556.2330521117.

The spelling of 172095841 in words is "one hundred seventy-two million, ninety-five thousand, eight hundred forty-one".