2158347 has 8 divisors (see below), whose sum is σ = 2907856. Its totient is φ = 1423872.

The previous prime is 2158333. The next prime is 2158357. The reversal of 2158347 is 7438512.

2158347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2158347 - 2¹¹ = 2156299 is a prime.

It is a Duffinian number.

2158347 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2158307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3418 + ... + 3999.

It is an arithmetic number, because the mean of its divisors is an integer number (363482).

2^2158347 is an apocalyptic number.

2158347 is a deficient number, since it is larger than the sum of its proper divisors (749509).

2158347 is an equidigital number, since it uses as much as digits as its factorization.

2158347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7517.

The product of its digits is 6720, while the sum is 30.

The square root of 2158347 is about 1469.1313760178. The cubic root of 2158347 is about 129.2330981669.

The spelling of 2158347 in words is "two million, one hundred fifty-eight thousand, three hundred forty-seven".