2138491214 has 16 divisors (see below), whose sum is σ = 3233485008. Its totient is φ = 1060687872.

The previous prime is 2138491207. The next prime is 2138491219. The reversal of 2138491214 is 4121948312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138491219) 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, 175694 + ... + 187470.

It is an arithmetic number, because the mean of its divisors is an integer number (202092813).

Almost surely, 2^2138491214 is an apocalyptic number.

2138491214 is a deficient number, since it is larger than the sum of its proper divisors (1094993794).

2138491214 is a wasteful number, since it uses less digits than its factorization.

2138491214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499.

The product of its digits is 13824, while the sum is 35.

The square root of 2138491214 is about 46243.8235227149. The cubic root of 2138491214 is about 1288.3558192730.

The spelling of 2138491214 in words is "two billion, one hundred thirty-eight million, four hundred ninety-one thousand, two hundred fourteen".