2185512071 has 2 divisors, whose sum is σ = 2185512072. Its totient is φ = 2185512070.

The previous prime is 2185512053. The next prime is 2185512089. The reversal of 2185512071 is 1702155812.

It is a balanced prime because it is at equal distance from previous prime (2185512053) and next prime (2185512089).

It is a cyclic number.

It is not a de Polignac number, because 2185512071 - 2²⁶ = 2118403207 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2185512001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092756035 + 1092756036.

It is an arithmetic number, because the mean of its divisors is an integer number (1092756036).

Almost surely, 2^2185512071 is an apocalyptic number.

2185512071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2185512071 is an equidigital number, since it uses as much as digits as its factorization.

2185512071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 2185512071 is about 46749.4606492952. The cubic root of 2185512071 is about 1297.7301754419.

Adding to 2185512071 its reverse (1702155812), we get a palindrome (3887667883).

The spelling of 2185512071 in words is "two billion, one hundred eighty-five million, five hundred twelve thousand, seventy-one".