172004232229 has 2 divisors, whose sum is σ = 172004232230. Its totient is φ = 172004232228.

The previous prime is 172004232181. The next prime is 172004232233. The reversal of 172004232229 is 922232400271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171146035204 + 858197025 = 413698^2 + 29295^2 .

It is a cyclic number.

It is not a de Polignac number, because 172004232229 - 2²⁵ = 171970677797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172004232194 and 172004232203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172004232259) 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, 86002116114 + 86002116115.

It is an arithmetic number, because the mean of its divisors is an integer number (86002116115).

Almost surely, 2^172004232229 is an apocalyptic number.

It is an amenable number.

172004232229 is a deficient number, since it is larger than the sum of its proper divisors (1).

172004232229 is an equidigital number, since it uses as much as digits as its factorization.

172004232229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 172004232229 in words is "one hundred seventy-two billion, four million, two hundred thirty-two thousand, two hundred twenty-nine".