172466429 has 2 divisors, whose sum is σ = 172466430. Its totient is φ = 172466428.

The previous prime is 172466417. The next prime is 172466467. The reversal of 172466429 is 924664271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162052900 + 10413529 = 12730^2 + 3227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172466429 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 (172466729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86233214 + 86233215.

It is an arithmetic number, because the mean of its divisors is an integer number (86233215).

Almost surely, 2^172466429 is an apocalyptic number.

It is an amenable number.

172466429 is a deficient number, since it is larger than the sum of its proper divisors (1).

172466429 is an equidigital number, since it uses as much as digits as its factorization.

172466429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 172466429 is about 13132.6474482490. The cubic root of 172466429 is about 556.6320265216.

The spelling of 172466429 in words is "one hundred seventy-two million, four hundred sixty-six thousand, four hundred twenty-nine".