2162740387 has 2 divisors, whose sum is σ = 2162740388. Its totient is φ = 2162740386.

The previous prime is 2162740373. The next prime is 2162740423. The reversal of 2162740387 is 7830472612.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2162740387 is a prime.

It is not a weakly prime, because it can be changed into another prime (2162741387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081370193 + 1081370194.

It is an arithmetic number, because the mean of its divisors is an integer number (1081370194).

Almost surely, 2^2162740387 is an apocalyptic number.

2162740387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162740387 is an equidigital number, since it uses as much as digits as its factorization.

2162740387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 2162740387 is about 46505.2726795575. The cubic root of 2162740387 is about 1293.2072482584.

The spelling of 2162740387 in words is "two billion, one hundred sixty-two million, seven hundred forty thousand, three hundred eighty-seven".