2640313141 has 2 divisors, whose sum is σ = 2640313142. Its totient is φ = 2640313140.

The previous prime is 2640313127. The next prime is 2640313177. The reversal of 2640313141 is 1413130462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1975446916 + 664866225 = 44446^2 + 25785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2640313141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2640313441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320156570 + 1320156571.

It is an arithmetic number, because the mean of its divisors is an integer number (1320156571).

Almost surely, 2^2640313141 is an apocalyptic number.

It is an amenable number.

2640313141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640313141 is an equidigital number, since it uses as much as digits as its factorization.

2640313141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2640313141 is about 51383.9774735277. The cubic root of 2640313141 is about 1382.1392887115.

The spelling of 2640313141 in words is "two billion, six hundred forty million, three hundred thirteen thousand, one hundred forty-one".