172040267 has 16 divisors (see below), whose sum is σ = 205517760. Its totient is φ = 140894208.

The previous prime is 172040261. The next prime is 172040273. The reversal of 172040267 is 762040271.

It is an interprime number because it is at equal distance from previous prime (172040261) and next prime (172040273).

It is not a de Polignac number, because 172040267 - 2⁶ = 172040203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (172040261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15323 + ... + 24059.

It is an arithmetic number, because the mean of its divisors is an integer number (12844860).

Almost surely, 2^172040267 is an apocalyptic number.

172040267 is a deficient number, since it is larger than the sum of its proper divisors (33477493).

172040267 is an equidigital number, since it uses as much as digits as its factorization.

172040267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8870.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 172040267 is about 13116.4121237479. The cubic root of 172040267 is about 556.1731718661.

The spelling of 172040267 in words is "one hundred seventy-two million, forty thousand, two hundred sixty-seven".