91854241 has 2 divisors, whose sum is σ = 91854242. Its totient is φ = 91854240.

The previous prime is 91854233. The next prime is 91854251. The reversal of 91854241 is 14245819.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91776400 + 77841 = 9580^2 + 279^2 .

It is a cyclic number.

It is not a de Polignac number, because 91854241 - 2³ = 91854233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91854197 and 91854206.

It is not a weakly prime, because it can be changed into another prime (91854211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45927120 + 45927121.

It is an arithmetic number, because the mean of its divisors is an integer number (45927121).

Almost surely, 2^91854241 is an apocalyptic number.

It is an amenable number.

91854241 is a deficient number, since it is larger than the sum of its proper divisors (1).

91854241 is an equidigital number, since it uses as much as digits as its factorization.

91854241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

The square root of 91854241 is about 9584.0618215869. The cubic root of 91854241 is about 451.1972087525.

The spelling of 91854241 in words is "ninety-one million, eight hundred fifty-four thousand, two hundred forty-one".