2185281463 has 2 divisors, whose sum is σ = 2185281464. Its totient is φ = 2185281462.

The previous prime is 2185281431. The next prime is 2185281467. The reversal of 2185281463 is 3641825812.

2185281463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2185281463 - 2⁵ = 2185281431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2185281467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092640731 + 1092640732.

It is an arithmetic number, because the mean of its divisors is an integer number (1092640732).

Almost surely, 2^2185281463 is an apocalyptic number.

2185281463 is a deficient number, since it is larger than the sum of its proper divisors (1).

2185281463 is an equidigital number, since it uses as much as digits as its factorization.

2185281463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 40.

The square root of 2185281463 is about 46746.9941600527. The cubic root of 2185281463 is about 1297.6845297722.

The spelling of 2185281463 in words is "two billion, one hundred eighty-five million, two hundred eighty-one thousand, four hundred sixty-three".