2145708827 has 2 divisors, whose sum is σ = 2145708828. Its totient is φ = 2145708826.

The previous prime is 2145708797. The next prime is 2145708841. The reversal of 2145708827 is 7288075412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2145708827 - 2¹² = 2145704731 is a prime.

It is not a weakly prime, because it can be changed into another prime (2145708857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072854413 + 1072854414.

It is an arithmetic number, because the mean of its divisors is an integer number (1072854414).

Almost surely, 2^2145708827 is an apocalyptic number.

2145708827 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145708827 is an equidigital number, since it uses as much as digits as its factorization.

2145708827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 2145708827 is about 46321.7964569597. The cubic root of 2145708827 is about 1289.8036331512.

The spelling of 2145708827 in words is "two billion, one hundred forty-five million, seven hundred eight thousand, eight hundred twenty-seven".