172065029 has 2 divisors, whose sum is σ = 172065030. Its totient is φ = 172065028.

The previous prime is 172064999. The next prime is 172065037. The reversal of 172065029 is 920560271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114532804 + 57532225 = 10702^2 + 7585^2 .

It is a cyclic number.

It is not a de Polignac number, because 172065029 - 2⁸ = 172064773 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 172064986 and 172065004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172065529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86032514 + 86032515.

It is an arithmetic number, because the mean of its divisors is an integer number (86032515).

Almost surely, 2^172065029 is an apocalyptic number.

It is an amenable number.

172065029 is a deficient number, since it is larger than the sum of its proper divisors (1).

172065029 is an equidigital number, since it uses as much as digits as its factorization.

172065029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 172065029 is about 13117.3560216989. The cubic root of 172065029 is about 556.1998541842.

The spelling of 172065029 in words is "one hundred seventy-two million, sixty-five thousand, twenty-nine".