172152203 has 2 divisors, whose sum is σ = 172152204. Its totient is φ = 172152202.

The previous prime is 172152181. The next prime is 172152229. The reversal of 172152203 is 302251271.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172152203 - 2¹² = 172148107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (172152403) 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, 86076101 + 86076102.

It is an arithmetic number, because the mean of its divisors is an integer number (86076102).

Almost surely, 2^172152203 is an apocalyptic number.

172152203 is a deficient number, since it is larger than the sum of its proper divisors (1).

172152203 is an equidigital number, since it uses as much as digits as its factorization.

172152203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 172152203 is about 13120.6784504461. The cubic root of 172152203 is about 556.2937682515.

The spelling of 172152203 in words is "one hundred seventy-two million, one hundred fifty-two thousand, two hundred three".