2147916539 has 2 divisors, whose sum is σ = 2147916540. Its totient is φ = 2147916538.

The previous prime is 2147916509. The next prime is 2147916553. The reversal of 2147916539 is 9356197412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2147916539 - 2⁸ = 2147916283 is a prime.

It is a super-2 number, since 2×2147916539² = 9227090917019477042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2147916493 and 2147916502.

It is not a weakly prime, because it can be changed into another prime (2147916509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073958269 + 1073958270.

It is an arithmetic number, because the mean of its divisors is an integer number (1073958270).

Almost surely, 2^2147916539 is an apocalyptic number.

2147916539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147916539 is an equidigital number, since it uses as much as digits as its factorization.

2147916539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 2147916539 is about 46345.6204942819. The cubic root of 2147916539 is about 1290.2458396117.

The spelling of 2147916539 in words is "two billion, one hundred forty-seven million, nine hundred sixteen thousand, five hundred thirty-nine".