191013896 has 16 divisors (see below), whose sum is σ = 373723200. Its totient is φ = 91354384.

The previous prime is 191013883. The next prime is 191013899. The reversal of 191013896 is 698310191.

It is not an unprimeable number, because it can be changed into a prime (191013899) 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, 518876 + ... + 519243.

It is an arithmetic number, because the mean of its divisors is an integer number (23357700).

Almost surely, 2^191013896 is an apocalyptic number.

It is an amenable number.

191013896 is a deficient number, since it is larger than the sum of its proper divisors (182709304).

191013896 is a wasteful number, since it uses less digits than its factorization.

191013896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038148 (or 1038144 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 191013896 is about 13820.7776915773. Note that the first 3 decimals coincide. The cubic root of 191013896 is about 575.9104879550.

The spelling of 191013896 in words is "one hundred ninety-one million, thirteen thousand, eight hundred ninety-six".