91300013 has 12 divisors (see below), whose sum is σ = 110844192. Its totient is φ = 73652160.

The previous prime is 91300003. The next prime is 91300037. The reversal of 91300013 is 31000319.

It is not a de Polignac number, because 91300013 - 2¹⁴ = 91283629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91299964 and 91300000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91300003) 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, 20543 + ... + 24588.

It is an arithmetic number, because the mean of its divisors is an integer number (9237016).

Almost surely, 2^91300013 is an apocalyptic number.

It is an amenable number.

91300013 is a deficient number, since it is larger than the sum of its proper divisors (19544179).

91300013 is a wasteful number, since it uses less digits than its factorization.

91300013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45172 (or 45155 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 91300013 is about 9555.1040287377. The cubic root of 91300013 is about 450.2879030076.

The spelling of 91300013 in words is "ninety-one million, three hundred thousand, thirteen".