2158297 has 8 divisors (see below), whose sum is σ = 2275776. Its totient is φ = 2042832.

The previous prime is 2158291. The next prime is 2158301. The reversal of 2158297 is 7928512.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2158297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2158291) 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, 2023 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (284472).

2^2158297 is an apocalyptic number.

It is an amenable number.

2158297 is a deficient number, since it is larger than the sum of its proper divisors (117479).

2158297 is a wasteful number, since it uses less digits than its factorization.

2158297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007.

The product of its digits is 10080, while the sum is 34.

The square root of 2158297 is about 1469.1143590613. The cubic root of 2158297 is about 129.2321002265.

The spelling of 2158297 in words is "two million, one hundred fifty-eight thousand, two hundred ninety-seven".