994261191 has 16 divisors (see below), whose sum is σ = 1652798208. Its totient is φ = 516499200.

The previous prime is 994261189. The next prime is 994261207. The reversal of 994261191 is 191162499.

It is a happy number.

It is not a de Polignac number, because 994261191 - 2¹ = 994261189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994261591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2151850 + ... + 2152311.

It is an arithmetic number, because the mean of its divisors is an integer number (103299888).

Almost surely, 2^994261191 is an apocalyptic number.

994261191 is a deficient number, since it is larger than the sum of its proper divisors (658537017).

994261191 is a wasteful number, since it uses less digits than its factorization.

994261191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304182.

The product of its digits is 34992, while the sum is 42.

The square root of 994261191 is about 31531.9075065242. The cubic root of 994261191 is about 998.0833926297.

The spelling of 994261191 in words is "nine hundred ninety-four million, two hundred sixty-one thousand, one hundred ninety-one".