9315091 has 4 divisors (see below), whose sum is σ = 9322672. Its totient is φ = 9307512.

The previous prime is 9315079. The next prime is 9315101. The reversal of 9315091 is 1905139.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1905139 = 17 ⋅112067.

It is a cyclic number.

It is not a de Polignac number, because 9315091 - 2¹¹ = 9313043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9315001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1476 + ... + 4561.

It is an arithmetic number, because the mean of its divisors is an integer number (2330668).

Almost surely, 2^9315091 is an apocalyptic number.

9315091 is a deficient number, since it is larger than the sum of its proper divisors (7581).

9315091 is a wasteful number, since it uses less digits than its factorization.

9315091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 9315091 is about 3052.0634003900. The cubic root of 9315091 is about 210.4080576726.

The spelling of 9315091 in words is "nine million, three hundred fifteen thousand, ninety-one".