91026041 has 12 divisors (see below), whose sum is σ = 100039020. Its totient is φ = 82709760.

The previous prime is 91026029. The next prime is 91026043. The reversal of 91026041 is 14062019.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5740816 + 85285225 = 2396^2 + 9235^2 .

It is not a de Polignac number, because 91026041 - 2²² = 86831737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 91025998 and 91026016.

It is not an unprimeable number, because it can be changed into a prime (91026043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2951 + ... + 13811.

It is an arithmetic number, because the mean of its divisors is an integer number (8336585).

Almost surely, 2^91026041 is an apocalyptic number.

It is an amenable number.

91026041 is a deficient number, since it is larger than the sum of its proper divisors (9012979).

91026041 is a wasteful number, since it uses less digits than its factorization.

91026041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10924 (or 10907 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 91026041 is about 9540.7568358071. The cubic root of 91026041 is about 449.8370455246.

The spelling of 91026041 in words is "ninety-one million, twenty-six thousand, forty-one".