994195845 has 12 divisors (see below), whose sum is σ = 1723272876. Its totient is φ = 530237760.

The previous prime is 994195801. The next prime is 994195847. The reversal of 994195845 is 548591499.

It can be written as a sum of positive squares in 2 ways, for example, as 632321316 + 361874529 = 25146^2 + 19023^2 .

It is not a de Polignac number, because 994195845 - 2⁹ = 994195333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 994195791 and 994195800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994195847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11046576 + ... + 11046665.

It is an arithmetic number, because the mean of its divisors is an integer number (143606073).

Almost surely, 2^994195845 is an apocalyptic number.

It is an amenable number.

994195845 is a deficient number, since it is larger than the sum of its proper divisors (729077031).

994195845 is a wasteful number, since it uses less digits than its factorization.

994195845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22093252 (or 22093249 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 54.

The square root of 994195845 is about 31530.8713009964. The cubic root of 994195845 is about 998.0615264149.

The spelling of 994195845 in words is "nine hundred ninety-four million, one hundred ninety-five thousand, eight hundred forty-five".