91311014 has 4 divisors (see below), whose sum is σ = 136966524. Its totient is φ = 45655506.

The previous prime is 91310993. The next prime is 91311049. The reversal of 91311014 is 41011319.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22827752 + ... + 22827755.

It is an arithmetic number, because the mean of its divisors is an integer number (34241631).

Almost surely, 2^91311014 is an apocalyptic number.

91311014 is a deficient number, since it is larger than the sum of its proper divisors (45655510).

91311014 is a wasteful number, since it uses less digits than its factorization.

91311014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45655509.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 91311014 is about 9555.6796723205. The cubic root of 91311014 is about 450.3059877742.

The spelling of 91311014 in words is "ninety-one million, three hundred eleven thousand, fourteen".