2391430105 has 4 divisors (see below), whose sum is σ = 2869716132. Its totient is φ = 1913144080.

The previous prime is 2391430099. The next prime is 2391430109. The reversal of 2391430105 is 5010341932.

2391430105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1050991561 + 1340438544 = 32419^2 + 36612^2 .

It is not a de Polignac number, because 2391430105 - 2⁷ = 2391429977 is a prime.

It is a super-2 number, since 2×2391430105² = 11437875894200622050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2391430109) 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, 239143006 + ... + 239143015.

It is an arithmetic number, because the mean of its divisors is an integer number (717429033).

Almost surely, 2^2391430105 is an apocalyptic number.

It is an amenable number.

2391430105 is a deficient number, since it is larger than the sum of its proper divisors (478286027).

2391430105 is an equidigital number, since it uses as much as digits as its factorization.

2391430105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478286026.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2391430105 is about 48902.2505105849. The cubic root of 2391430105 is about 1337.2703967825.

The spelling of 2391430105 in words is "two billion, three hundred ninety-one million, four hundred thirty thousand, one hundred five".