191045804 has 12 divisors (see below), whose sum is σ = 336545328. Its totient is φ = 94890000.

The previous prime is 191045801. The next prime is 191045807. The reversal of 191045804 is 408540191.

It is an interprime number because it is at equal distance from previous prime (191045801) and next prime (191045807).

It is not an unprimeable number, because it can be changed into a prime (191045801) 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, 157547 + ... + 158754.

It is an arithmetic number, because the mean of its divisors is an integer number (28045444).

Almost surely, 2^191045804 is an apocalyptic number.

It is an amenable number.

191045804 is a deficient number, since it is larger than the sum of its proper divisors (145499524).

191045804 is a wasteful number, since it uses less digits than its factorization.

191045804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316456 (or 316454 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 191045804 is about 13821.9319923085. The cubic root of 191045804 is about 575.9425539096.

Adding to 191045804 its reverse (408540191), we get a palindrome (599585995).

The spelling of 191045804 in words is "one hundred ninety-one million, forty-five thousand, eight hundred four".