172150087 has 2 divisors, whose sum is σ = 172150088. Its totient is φ = 172150086.

The previous prime is 172150067. The next prime is 172150091. The reversal of 172150087 is 780051271.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172150087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172150067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86075043 + 86075044.

It is an arithmetic number, because the mean of its divisors is an integer number (86075044).

Almost surely, 2^172150087 is an apocalyptic number.

172150087 is a deficient number, since it is larger than the sum of its proper divisors (1).

172150087 is an equidigital number, since it uses as much as digits as its factorization.

172150087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 172150087 is about 13120.5978141242. The cubic root of 172150087 is about 556.2914890234.

The spelling of 172150087 in words is "one hundred seventy-two million, one hundred fifty thousand, eighty-seven".