1640514713 has 2 divisors, whose sum is σ = 1640514714. Its totient is φ = 1640514712.

The previous prime is 1640514709. The next prime is 1640514719. The reversal of 1640514713 is 3174150461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1285079104 + 355435609 = 35848^2 + 18853^2 .

It is a cyclic number.

It is not a de Polignac number, because 1640514713 - 2² = 1640514709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1640514713.

It is not a weakly prime, because it can be changed into another prime (1640514719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820257356 + 820257357.

It is an arithmetic number, because the mean of its divisors is an integer number (820257357).

Almost surely, 2^1640514713 is an apocalyptic number.

It is an amenable number.

1640514713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1640514713 is an equidigital number, since it uses as much as digits as its factorization.

1640514713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1640514713 is about 40503.2679298844. The cubic root of 1640514713 is about 1179.3970665344.

The spelling of 1640514713 in words is "one billion, six hundred forty million, five hundred fourteen thousand, seven hundred thirteen".