2137721314 has 4 divisors (see below), whose sum is σ = 3206581974. Its totient is φ = 1068860656.

The previous prime is 2137721309. The next prime is 2137721317. The reversal of 2137721314 is 4131277312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2121984225 + 15737089 = 46065^2 + 3967^2 .

It is not an unprimeable number, because it can be changed into a prime (2137721317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534430327 + ... + 534430330.

Almost surely, 2^2137721314 is an apocalyptic number.

2137721314 is a deficient number, since it is larger than the sum of its proper divisors (1068860660).

2137721314 is a wasteful number, since it uses less digits than its factorization.

2137721314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068860659.

The product of its digits is 7056, while the sum is 31.

The square root of 2137721314 is about 46235.4984184230. The cubic root of 2137721314 is about 1288.2011893486.

Adding to 2137721314 its reverse (4131277312), we get a palindrome (6268998626).

The spelling of 2137721314 in words is "two billion, one hundred thirty-seven million, seven hundred twenty-one thousand, three hundred fourteen".