91126811 has 2 divisors, whose sum is σ = 91126812. Its totient is φ = 91126810.

The previous prime is 91126801. The next prime is 91126823. The reversal of 91126811 is 11862119.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91126811 - 2¹⁰ = 91125787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91126801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45563405 + 45563406.

It is an arithmetic number, because the mean of its divisors is an integer number (45563406).

Almost surely, 2^91126811 is an apocalyptic number.

91126811 is a deficient number, since it is larger than the sum of its proper divisors (1).

91126811 is an equidigital number, since it uses as much as digits as its factorization.

91126811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 29.

The square root of 91126811 is about 9546.0364026123. The cubic root of 91126811 is about 450.0029810502.

The spelling of 91126811 in words is "ninety-one million, one hundred twenty-six thousand, eight hundred eleven".