2140354637 has 2 divisors, whose sum is σ = 2140354638. Its totient is φ = 2140354636.

The previous prime is 2140354613. The next prime is 2140354639. The reversal of 2140354637 is 7364530412.

Added to its reverse (7364530412) it gives a square (9504885049 = 97493²).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1657629796 + 482724841 = 40714^2 + 21971^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140354637 - 2¹⁶ = 2140289101 is a prime.

It is a super-2 number, since 2×2140354637² = 9162235944254803538, which contains 22 as substring.

Together with 2140354639, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2140354597 and 2140354606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140354639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070177318 + 1070177319.

It is an arithmetic number, because the mean of its divisors is an integer number (1070177319).

Almost surely, 2^2140354637 is an apocalyptic number.

It is an amenable number.

2140354637 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140354637 is an equidigital number, since it uses as much as digits as its factorization.

2140354637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 2140354637 is about 46263.9669397253. The cubic root of 2140354637 is about 1288.7299233564.

Adding to 2140354637 its reverse (7364530412), we get a square (9504885049 = 97493²).

The spelling of 2140354637 in words is "two billion, one hundred forty million, three hundred fifty-four thousand, six hundred thirty-seven".