91126651 has 16 divisors (see below), whose sum is σ = 113833728. Its totient is φ = 70869600.

The previous prime is 91126649. The next prime is 91126661. The reversal of 91126651 is 15662119.

It is a cyclic number.

It is not a de Polignac number, because 91126651 - 2¹ = 91126649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91126631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58756 + ... + 60286.

It is an arithmetic number, because the mean of its divisors is an integer number (7114608).

Almost surely, 2^91126651 is an apocalyptic number.

91126651 is a deficient number, since it is larger than the sum of its proper divisors (22707077).

91126651 is a wasteful number, since it uses less digits than its factorization.

91126651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322.

The product of its digits is 3240, while the sum is 31.

The square root of 91126651 is about 9546.0280221671. The cubic root of 91126651 is about 450.0027176791.

The spelling of 91126651 in words is "ninety-one million, one hundred twenty-six thousand, six hundred fifty-one".