172511483 has 4 divisors (see below), whose sum is σ = 174874728. Its totient is φ = 170148240.

The previous prime is 172511473. The next prime is 172511489. The reversal of 172511483 is 384115271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 384115271 = 3547 ⋅108293.

It is a cyclic number.

It is not a de Polignac number, because 172511483 - 2⁶ = 172511419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172511489) 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 3 ways as a sum of consecutive naturals, for example, 1181513 + ... + 1181658.

It is an arithmetic number, because the mean of its divisors is an integer number (43718682).

Almost surely, 2^172511483 is an apocalyptic number.

172511483 is a deficient number, since it is larger than the sum of its proper divisors (2363245).

172511483 is an equidigital number, since it uses as much as digits as its factorization.

172511483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363244.

The product of its digits is 6720, while the sum is 32.

The square root of 172511483 is about 13134.3626796278. The cubic root of 172511483 is about 556.6804926028.

The spelling of 172511483 in words is "one hundred seventy-two million, five hundred eleven thousand, four hundred eighty-three".