2194358539 has 4 divisors (see below), whose sum is σ = 2289765456. Its totient is φ = 2098951624.

The previous prime is 2194358533. The next prime is 2194358549. The reversal of 2194358539 is 9358534912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2194358539 - 2³ = 2194358531 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2194358492 and 2194358501.

It is not an unprimeable number, because it can be changed into a prime (2194358531) 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, 47703424 + ... + 47703469.

It is an arithmetic number, because the mean of its divisors is an integer number (572441364).

Almost surely, 2^2194358539 is an apocalyptic number.

2194358539 is a deficient number, since it is larger than the sum of its proper divisors (95406917).

2194358539 is an equidigital number, since it uses as much as digits as its factorization.

2194358539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95406916.

The product of its digits is 1166400, while the sum is 49.

The square root of 2194358539 is about 46843.9808193112. The cubic root of 2194358539 is about 1299.4787928362.

The spelling of 2194358539 in words is "two billion, one hundred ninety-four million, three hundred fifty-eight thousand, five hundred thirty-nine".