2158071 has 8 divisors (see below), whose sum is σ = 2884224. Its totient is φ = 1435320.

The previous prime is 2158069. The next prime is 2158073. The reversal of 2158071 is 1708512.

It is an interprime number because it is at equal distance from previous prime (2158069) and next prime (2158073).

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

It is not a de Polignac number, because 2158071 - 2¹ = 2158069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990 + ... + 2876.

It is an arithmetic number, because the mean of its divisors is an integer number (360528).

2^2158071 is an apocalyptic number.

2158071 is a deficient number, since it is larger than the sum of its proper divisors (726153).

2158071 is an equidigital number, since it uses as much as digits as its factorization.

2158071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 2158071 is about 1469.0374399586. The cubic root of 2158071 is about 129.2275893437.

The spelling of 2158071 in words is "two million, one hundred fifty-eight thousand, seventy-one".