172016267 has 4 divisors (see below), whose sum is σ = 172043400. Its totient is φ = 171989136.

The previous prime is 172016261. The next prime is 172016281. The reversal of 172016267 is 762610271.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 762610271 = 223 ⋅3419777.

It is a cyclic number.

It is not a de Polignac number, because 172016267 - 2¹⁸ = 171754123 is a prime.

It is a super-2 number, since 2×172016267² = 59179192225230578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172016261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (43010850).

Almost surely, 2^172016267 is an apocalyptic number.

172016267 is a deficient number, since it is larger than the sum of its proper divisors (27133).

172016267 is a wasteful number, since it uses less digits than its factorization.

172016267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27132.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 172016267 is about 13115.4972075023. The cubic root of 172016267 is about 556.1473081984.

The spelling of 172016267 in words is "one hundred seventy-two million, sixteen thousand, two hundred sixty-seven".