2145637211 has 2 divisors, whose sum is σ = 2145637212. Its totient is φ = 2145637210.

The previous prime is 2145637199. The next prime is 2145637261. The reversal of 2145637211 is 1127365412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145637211 - 2³⁰ = 1071895387 is a prime.

It is not a weakly prime, because it can be changed into another prime (2145637261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072818605 + 1072818606.

It is an arithmetic number, because the mean of its divisors is an integer number (1072818606).

Almost surely, 2^2145637211 is an apocalyptic number.

2145637211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145637211 is an equidigital number, since it uses as much as digits as its factorization.

2145637211 is an evil number, because the sum of its binary digits is even.

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

The square root of 2145637211 is about 46321.0234234953. The cubic root of 2145637211 is about 1289.7892833314.

The spelling of 2145637211 in words is "two billion, one hundred forty-five million, six hundred thirty-seven thousand, two hundred eleven".