172228363 has 2 divisors, whose sum is σ = 172228364. Its totient is φ = 172228362.

The previous prime is 172228327. The next prime is 172228409. The reversal of 172228363 is 363822271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172228363 - 2¹⁷ = 172097291 is a prime.

It is not a weakly prime, because it can be changed into another prime (172258363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86114181 + 86114182.

It is an arithmetic number, because the mean of its divisors is an integer number (86114182).

Almost surely, 2^172228363 is an apocalyptic number.

172228363 is a deficient number, since it is larger than the sum of its proper divisors (1).

172228363 is an equidigital number, since it uses as much as digits as its factorization.

172228363 is an evil number, because the sum of its binary digits is even.

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

The square root of 172228363 is about 13123.5804184681. The cubic root of 172228363 is about 556.3757907998.

The spelling of 172228363 in words is "one hundred seventy-two million, two hundred twenty-eight thousand, three hundred sixty-three".