172112699 has 6 divisors (see below), whose sum is σ = 189181860. Its totient is φ = 156465980.

The previous prime is 172112653. The next prime is 172112729. The reversal of 172112699 is 996211271.

172112699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172112699 - 2¹⁶ = 172047163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172112299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711089 + ... + 711330.

It is an arithmetic number, because the mean of its divisors is an integer number (31530310).

Almost surely, 2^172112699 is an apocalyptic number.

172112699 is a deficient number, since it is larger than the sum of its proper divisors (17069161).

172112699 is a wasteful number, since it uses less digits than its factorization.

172112699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422441 (or 1422430 counting only the distinct ones).

The product of its digits is 13608, while the sum is 38.

The square root of 172112699 is about 13119.1729541157. The cubic root of 172112699 is about 556.2512138340.

The spelling of 172112699 in words is "one hundred seventy-two million, one hundred twelve thousand, six hundred ninety-nine".