172854841 has 4 divisors (see below), whose sum is σ = 175434832. Its totient is φ = 170274852.

The previous prime is 172854839. The next prime is 172854863. The reversal of 172854841 is 148458271.

172854841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148458271 = 13 ⋅11419867.

It is a cyclic number.

It is not a de Polignac number, because 172854841 - 2¹ = 172854839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172854794 and 172854803.

It is not an unprimeable number, because it can be changed into a prime (172854641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289895 + ... + 1290028.

It is an arithmetic number, because the mean of its divisors is an integer number (43858708).

Almost surely, 2^172854841 is an apocalyptic number.

It is an amenable number.

172854841 is a deficient number, since it is larger than the sum of its proper divisors (2579991).

172854841 is an equidigital number, since it uses as much as digits as its factorization.

172854841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579990.

The product of its digits is 71680, while the sum is 40.

The square root of 172854841 is about 13147.4271627570. The cubic root of 172854841 is about 557.0495772672.

The spelling of 172854841 in words is "one hundred seventy-two million, eight hundred fifty-four thousand, eight hundred forty-one".