2303091 has 24 divisors (see below), whose sum is σ = 3843840. Its totient is φ = 1301616.

The previous prime is 2303089. The next prime is 2303117. The reversal of 2303091 is 1903032.

It is not a de Polignac number, because 2303091 - 2¹ = 2303089 is a prime.

2303091 is a lucky number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2303591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8626 + ... + 8888.

It is an arithmetic number, because the mean of its divisors is an integer number (160160).

2^2303091 is an apocalyptic number.

2303091 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2303091 is a deficient number, since it is larger than the sum of its proper divisors (1540749).

2303091 is a wasteful number, since it uses less digits than its factorization.

2303091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2303091 is about 1517.5938191756. The cubic root of 2303091 is about 132.0597181579.

It can be divided in two parts, 230 and 3091, that added together give a triangular number (3321 = T₈₁).

The spelling of 2303091 in words is "two million, three hundred three thousand, ninety-one".