2137443 has 32 divisors (see below), whose sum is σ = 3747840. Its totient is φ = 1049760.

The previous prime is 2137441. The next prime is 2137451. The reversal of 2137443 is 3447312.

It is a Cunningham number, because it is equal to 1462²-1.

It is not a de Polignac number, because 2137443 - 2¹ = 2137441 is a prime.

2137443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2137441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4146 + ... + 4632.

It is an arithmetic number, because the mean of its divisors is an integer number (117120).

2^2137443 is an apocalyptic number.

2137443 is a deficient number, since it is larger than the sum of its proper divisors (1610397).

2137443 is a wasteful number, since it uses less digits than its factorization.

2137443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527.

The product of its digits is 2016, while the sum is 24.

The square root of 2137443 is about 1461.9996580027. Note that the first 3 decimals coincide. The cubic root of 2137443 is about 128.8145282469.

The spelling of 2137443 in words is "two million, one hundred thirty-seven thousand, four hundred forty-three".