91927141 has 2 divisors, whose sum is σ = 91927142. Its totient is φ = 91927140.

The previous prime is 91927117. The next prime is 91927153. The reversal of 91927141 is 14172919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91126116 + 801025 = 9546^2 + 895^2 .

It is an emirp because it is prime and its reverse (14172919) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91927141 - 2⁹ = 91926629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91927097 and 91927106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91927541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45963570 + 45963571.

It is an arithmetic number, because the mean of its divisors is an integer number (45963571).

Almost surely, 2^91927141 is an apocalyptic number.

It is an amenable number.

91927141 is a deficient number, since it is larger than the sum of its proper divisors (1).

91927141 is an equidigital number, since it uses as much as digits as its factorization.

91927141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 34.

The square root of 91927141 is about 9587.8642564442. The cubic root of 91927141 is about 451.3165412165.

The spelling of 91927141 in words is "ninety-one million, nine hundred twenty-seven thousand, one hundred forty-one".