2012845481 has 2 divisors, whose sum is σ = 2012845482. Its totient is φ = 2012845480.

The previous prime is 2012845451. The next prime is 2012845537. The reversal of 2012845481 is 1845482102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1672073881 + 340771600 = 40891^2 + 18460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012845481 - 2¹⁸ = 2012583337 is a prime.

It is a super-2 number, since 2×2012845481² = 8103093860764242722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2012845451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006422740 + 1006422741.

It is an arithmetic number, because the mean of its divisors is an integer number (1006422741).

Almost surely, 2^2012845481 is an apocalyptic number.

It is an amenable number.

2012845481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012845481 is an equidigital number, since it uses as much as digits as its factorization.

2012845481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 2012845481 is about 44864.7465277583. The cubic root of 2012845481 is about 1262.6126775360.

The spelling of 2012845481 in words is "two billion, twelve million, eight hundred forty-five thousand, four hundred eighty-one".