811115093 has 16 divisors (see below), whose sum is σ = 851558400. Its totient is φ = 771662640.

The previous prime is 811115089. The next prime is 811115153. The reversal of 811115093 is 390511118.

It is a cyclic number.

It is not a de Polignac number, because 811115093 - 2² = 811115089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811115003) 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, 614288 + ... + 615606.

It is an arithmetic number, because the mean of its divisors is an integer number (53222400).

Almost surely, 2^811115093 is an apocalyptic number.

811115093 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

811115093 is a deficient number, since it is larger than the sum of its proper divisors (40443307).

811115093 is a wasteful number, since it uses less digits than its factorization.

811115093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672.

The product of its (nonzero) digits is 1080, while the sum is 29.

The square root of 811115093 is about 28480.0823910325. The cubic root of 811115093 is about 932.5973152996.

The spelling of 811115093 in words is "eight hundred eleven million, one hundred fifteen thousand, ninety-three".