172622273 has 2 divisors, whose sum is σ = 172622274. Its totient is φ = 172622272.

The previous prime is 172622269. The next prime is 172622299. The reversal of 172622273 is 372226271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97851664 + 74770609 = 9892^2 + 8647^2 .

It is a cyclic number.

It is not a de Polignac number, because 172622273 - 2² = 172622269 is a prime.

It is not a weakly prime, because it can be changed into another prime (172622213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86311136 + 86311137.

It is an arithmetic number, because the mean of its divisors is an integer number (86311137).

Almost surely, 2^172622273 is an apocalyptic number.

It is an amenable number.

172622273 is a deficient number, since it is larger than the sum of its proper divisors (1).

172622273 is an equidigital number, since it uses as much as digits as its factorization.

172622273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 32.

The square root of 172622273 is about 13138.5795655390. The cubic root of 172622273 is about 556.7996372004.

The spelling of 172622273 in words is "one hundred seventy-two million, six hundred twenty-two thousand, two hundred seventy-three".