2318091 has 4 divisors (see below), whose sum is σ = 3090792. Its totient is φ = 1545392.

The previous prime is 2318089. The next prime is 2318093. The reversal of 2318091 is 1908132.

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

It is an interprime number because it is at equal distance from previous prime (2318089) and next prime (2318093).

It is a cyclic number.

It is not a de Polignac number, because 2318091 - 2¹ = 2318089 is a prime.

It is a D-number.

2318091 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2318093) 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, 386346 + ... + 386351.

It is an arithmetic number, because the mean of its divisors is an integer number (772698).

2^2318091 is an apocalyptic number.

2318091 is a deficient number, since it is larger than the sum of its proper divisors (772701).

2318091 is an equidigital number, since it uses as much as digits as its factorization.

2318091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772700.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2318091 is about 1522.5278322579. The cubic root of 2318091 is about 132.3457990162.

The spelling of 2318091 in words is "two million, three hundred eighteen thousand, ninety-one".