91518041 has 16 divisors (see below), whose sum is σ = 98461440. Its totient is φ = 84810960.

The previous prime is 91518029. The next prime is 91518059. The reversal of 91518041 is 14081519.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91518041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91517995 and 91518013.

It is not an unprimeable number, because it can be changed into a prime (91518241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206366 + ... + 206808.

It is an arithmetic number, because the mean of its divisors is an integer number (6153840).

Almost surely, 2^91518041 is an apocalyptic number.

It is an amenable number.

91518041 is a deficient number, since it is larger than the sum of its proper divisors (6943399).

91518041 is a wasteful number, since it uses less digits than its factorization.

91518041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 91518041 is about 9566.5062065521. The cubic root of 91518041 is about 450.6460531047.

The spelling of 91518041 in words is "ninety-one million, five hundred eighteen thousand, forty-one".