91134719 has 16 divisors (see below), whose sum is σ = 100548000. Its totient is φ = 82083456.

The previous prime is 91134707. The next prime is 91134721. The reversal of 91134719 is 91743119.

It is a happy number.

It is not a de Polignac number, because 91134719 - 2¹⁶ = 91069183 is a prime.

It is a super-2 number, since 2×91134719² = 16611074014417922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91134749) 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, 240272 + ... + 240650.

It is an arithmetic number, because the mean of its divisors is an integer number (6284250).

Almost surely, 2^91134719 is an apocalyptic number.

91134719 is a deficient number, since it is larger than the sum of its proper divisors (9413281).

91134719 is a wasteful number, since it uses less digits than its factorization.

91134719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794.

The product of its digits is 6804, while the sum is 35.

The square root of 91134719 is about 9546.4505969496. The cubic root of 91134719 is about 450.0159977852.

Subtracting 91134719 from its reverse (91743119), we obtain a square (608400 = 780²).

The spelling of 91134719 in words is "ninety-one million, one hundred thirty-four thousand, seven hundred nineteen".