2158937 has 8 divisors (see below), whose sum is σ = 2413152. Its totient is φ = 1914400.

The previous prime is 2158931. The next prime is 2158979. The reversal of 2158937 is 7398512.

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

It is a cyclic number.

It is not a de Polignac number, because 2158937 - 2⁴ = 2158921 is a prime.

It is a super-2 number, since 2×2158937² = 9322017939938, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁷ + 1 + 5³ + 8⁷ + 9² + 3¹⁰ + 7⁴ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2158897 and 2158906.

It is not an unprimeable number, because it can be changed into a prime (2158931) 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, 1943 + ... + 2844.

It is an arithmetic number, because the mean of its divisors is an integer number (301644).

2^2158937 is an apocalyptic number.

It is an amenable number.

2158937 is a deficient number, since it is larger than the sum of its proper divisors (254215).

2158937 is a wasteful number, since it uses less digits than its factorization.

2158937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4839.

The product of its digits is 15120, while the sum is 35.

The square root of 2158937 is about 1469.3321612216. The cubic root of 2158937 is about 129.2448726995.

The spelling of 2158937 in words is "two million, one hundred fifty-eight thousand, nine hundred thirty-seven".