172091483 has 4 divisors (see below), whose sum is σ = 173865720. Its totient is φ = 170317248.

The previous prime is 172091471. The next prime is 172091501. The reversal of 172091483 is 384190271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 384190271 = 9209 ⋅41719.

It is a cyclic number.

It is not a de Polignac number, because 172091483 - 2¹⁰ = 172090459 is a prime.

It is a super-2 number, since 2×172091483² = 59230957042278578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172090483) 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, 886973 + ... + 887166.

It is an arithmetic number, because the mean of its divisors is an integer number (43466430).

Almost surely, 2^172091483 is an apocalyptic number.

172091483 is a deficient number, since it is larger than the sum of its proper divisors (1774237).

172091483 is an equidigital number, since it uses as much as digits as its factorization.

172091483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774236.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 172091483 is about 13118.3643416395. The cubic root of 172091483 is about 556.2283568905.

The spelling of 172091483 in words is "one hundred seventy-two million, ninety-one thousand, four hundred eighty-three".