91349123 has 8 divisors (see below), whose sum is σ = 95558400. Its totient is φ = 87159688.

The previous prime is 91349119. The next prime is 91349129. The reversal of 91349123 is 32194319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91349123 - 2² = 91349119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91349123.

It is not an unprimeable number, because it can be changed into a prime (91349129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4898 + ... + 14376.

It is an arithmetic number, because the mean of its divisors is an integer number (11944800).

Almost surely, 2^91349123 is an apocalyptic number.

91349123 is a deficient number, since it is larger than the sum of its proper divisors (4209277).

91349123 is a wasteful number, since it uses less digits than its factorization.

91349123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9921.

The product of its digits is 5832, while the sum is 32.

The square root of 91349123 is about 9557.6735139886. The cubic root of 91349123 is about 450.3686247017.

The spelling of 91349123 in words is "ninety-one million, three hundred forty-nine thousand, one hundred twenty-three".