2137243 has 2 divisors, whose sum is σ = 2137244. Its totient is φ = 2137242.

The previous prime is 2137237. The next prime is 2137259. The reversal of 2137243 is 3427312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2137243 - 2⁵ = 2137211 is a prime.

It is not a weakly prime, because it can be changed into another prime (2137273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068621 + 1068622.

It is an arithmetic number, because the mean of its divisors is an integer number (1068622).

2^2137243 is an apocalyptic number.

2137243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137243 is an equidigital number, since it uses as much as digits as its factorization.

2137243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 22.

The square root of 2137243 is about 1461.9312569338. The cubic root of 2137243 is about 128.8105104073.

The spelling of 2137243 in words is "two million, one hundred thirty-seven thousand, two hundred forty-three".