172451073 has 8 divisors (see below), whose sum is σ = 230009248. Its totient is φ = 114930144.

The previous prime is 172451063. The next prime is 172451089. The reversal of 172451073 is 370154271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172451073 - 2⁴ = 172451057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172451073.

It is not an unprimeable number, because it can be changed into a prime (172451003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4365 + ... + 19077.

It is an arithmetic number, because the mean of its divisors is an integer number (28751156).

Almost surely, 2^172451073 is an apocalyptic number.

It is an amenable number.

172451073 is a deficient number, since it is larger than the sum of its proper divisors (57558175).

172451073 is a wasteful number, since it uses less digits than its factorization.

172451073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18623.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 172451073 is about 13132.0627854119. The cubic root of 172451073 is about 556.6155056347.

The spelling of 172451073 in words is "one hundred seventy-two million, four hundred fifty-one thousand, seventy-three".