2430091 has 2 divisors, whose sum is σ = 2430092. Its totient is φ = 2430090.

The previous prime is 2430089. The next prime is 2430139. The reversal of 2430091 is 1900342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2430091 - 2¹ = 2430089 is a prime.

Together with 2430089, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2430011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215045 + 1215046.

It is an arithmetic number, because the mean of its divisors is an integer number (1215046).

2^2430091 is an apocalyptic number.

2430091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2430091 is an equidigital number, since it uses as much as digits as its factorization.

2430091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2430091 is about 1558.8749148023. The cubic root of 2430091 is about 134.4438205973.

The spelling of 2430091 in words is "two million, four hundred thirty thousand, ninety-one".