859182540241 has 3 divisors (see below), whose sum is σ = 859183467163. Its totient is φ = 859181613320.

The previous prime is 859182540199. The next prime is 859182540257. The reversal of 859182540241 is 142045281958.

It is a happy number.

The square root of 859182540241 is 926921.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2817380241 + 856365160000 = 53079^2 + 925400^2 .

It is not a de Polignac number, because 859182540241 - 2¹⁵ = 859182507473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859182540341) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 463461 + ... + 1390381.

Almost surely, 2^859182540241 is an apocalyptic number.

859182540241 is the 926921-st square number.

859182540241 is the 463461-st centered octagonal number.

It is an amenable number.

859182540241 is a deficient number, since it is larger than the sum of its proper divisors (926922).

859182540241 is an frugal number, since it uses more digits than its factorization.

859182540241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853842 (or 926921 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 49.

Multiplying 859182540241 by its sum of digits (49), we get a square (42099944471809 = 6488447²).

The spelling of 859182540241 in words is "eight hundred fifty-nine billion, one hundred eighty-two million, five hundred forty thousand, two hundred forty-one".