91101053 has 2 divisors, whose sum is σ = 91101054. Its totient is φ = 91101052.

The previous prime is 91101041. The next prime is 91101061. The reversal of 91101053 is 35010119.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64609444 + 26491609 = 8038^2 + 5147^2 .

It is a cyclic number.

It is not a de Polignac number, because 91101053 - 2²⁰ = 90052477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91101013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45550526 + 45550527.

It is an arithmetic number, because the mean of its divisors is an integer number (45550527).

Almost surely, 2^91101053 is an apocalyptic number.

It is an amenable number.

91101053 is a deficient number, since it is larger than the sum of its proper divisors (1).

91101053 is an equidigital number, since it uses as much as digits as its factorization.

91101053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 91101053 is about 9544.6871609288. The cubic root of 91101053 is about 449.9605776165.

The spelling of 91101053 in words is "ninety-one million, one hundred one thousand, fifty-three".