2140636513 has 2 divisors, whose sum is σ = 2140636514. Its totient is φ = 2140636512.

The previous prime is 2140636493. The next prime is 2140636523. The reversal of 2140636513 is 3156360412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1892511009 + 248125504 = 43503^2 + 15752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2140636513 is a prime.

It is not a weakly prime, because it can be changed into another prime (2140636523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070318256 + 1070318257.

It is an arithmetic number, because the mean of its divisors is an integer number (1070318257).

Almost surely, 2^2140636513 is an apocalyptic number.

It is an amenable number.

2140636513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140636513 is an equidigital number, since it uses as much as digits as its factorization.

2140636513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2140636513 is about 46267.0132275685. The cubic root of 2140636513 is about 1288.7864943695.

Adding to 2140636513 its reverse (3156360412), we get a palindrome (5296996925).

The spelling of 2140636513 in words is "two billion, one hundred forty million, six hundred thirty-six thousand, five hundred thirteen".