91134936143 has 2 divisors, whose sum is σ = 91134936144. Its totient is φ = 91134936142.

The previous prime is 91134936107. The next prime is 91134936169. The reversal of 91134936143 is 34163943119.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91134936143 - 2²² = 91130741839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91134936094 and 91134936103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91134936043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45567468071 + 45567468072.

It is an arithmetic number, because the mean of its divisors is an integer number (45567468072).

Almost surely, 2^91134936143 is an apocalyptic number.

91134936143 is a deficient number, since it is larger than the sum of its proper divisors (1).

91134936143 is an equidigital number, since it uses as much as digits as its factorization.

91134936143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The spelling of 91134936143 in words is "ninety-one billion, one hundred thirty-four million, nine hundred thirty-six thousand, one hundred forty-three".