172075497 has 32 divisors (see below), whose sum is σ = 255897600. Its totient is φ = 101977920.

The previous prime is 172075469. The next prime is 172075543. The reversal of 172075497 is 794570271.

It is not a de Polignac number, because 172075497 - 2¹¹ = 172073449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172075597) 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 in 31 ways as a sum of consecutive naturals, for example, 492879 + ... + 493227.

It is an arithmetic number, because the mean of its divisors is an integer number (7996800).

Almost surely, 2^172075497 is an apocalyptic number.

It is an amenable number.

172075497 is a deficient number, since it is larger than the sum of its proper divisors (83822103).

172075497 is a wasteful number, since it uses less digits than its factorization.

172075497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653.

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 172075497 is about 13117.7550289674. The cubic root of 172075497 is about 556.2111332183.

The spelling of 172075497 in words is "one hundred seventy-two million, seventy-five thousand, four hundred ninety-seven".