172069159 has 2 divisors, whose sum is σ = 172069160. Its totient is φ = 172069158.

The previous prime is 172069109. The next prime is 172069201. The reversal of 172069159 is 951960271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172069159 - 2²⁷ = 37851431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172069109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86034579 + 86034580.

It is an arithmetic number, because the mean of its divisors is an integer number (86034580).

Almost surely, 2^172069159 is an apocalyptic number.

172069159 is a deficient number, since it is larger than the sum of its proper divisors (1).

172069159 is an equidigital number, since it uses as much as digits as its factorization.

172069159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 172069159 is about 13117.5134457716. The cubic root of 172069159 is about 556.2043042208.

The spelling of 172069159 in words is "one hundred seventy-two million, sixty-nine thousand, one hundred fifty-nine".