2137443493 has 2 divisors, whose sum is σ = 2137443494. Its totient is φ = 2137443492.

The previous prime is 2137443467. The next prime is 2137443559. The reversal of 2137443493 is 3943447312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1801747809 + 335695684 = 42447^2 + 18322^2 .

It is a cyclic number.

It is not a de Polignac number, because 2137443493 - 2¹³ = 2137435301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2137443193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068721746 + 1068721747.

It is an arithmetic number, because the mean of its divisors is an integer number (1068721747).

Almost surely, 2^2137443493 is an apocalyptic number.

It is an amenable number.

2137443493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137443493 is an equidigital number, since it uses as much as digits as its factorization.

2137443493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 40.

The square root of 2137443493 is about 46232.4939085055. The cubic root of 2137443493 is about 1288.1453815054.

The spelling of 2137443493 in words is "two billion, one hundred thirty-seven million, four hundred forty-three thousand, four hundred ninety-three".