172228152587 has 2 divisors, whose sum is σ = 172228152588. Its totient is φ = 172228152586.

The previous prime is 172228152529. The next prime is 172228152599. The reversal of 172228152587 is 785251822271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172228152587 - 2³² = 167933185291 is a prime.

It is not a weakly prime, because it can be changed into another prime (172228152487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86114076293 + 86114076294.

It is an arithmetic number, because the mean of its divisors is an integer number (86114076294).

Almost surely, 2^172228152587 is an apocalyptic number.

172228152587 is a deficient number, since it is larger than the sum of its proper divisors (1).

172228152587 is an equidigital number, since it uses as much as digits as its factorization.

172228152587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1254400, while the sum is 50.

The spelling of 172228152587 in words is "one hundred seventy-two billion, two hundred twenty-eight million, one hundred fifty-two thousand, five hundred eighty-seven".