945364681 has 2 divisors, whose sum is σ = 945364682. Its totient is φ = 945364680.

The previous prime is 945364663. The next prime is 945364727. The reversal of 945364681 is 186463549.

945364681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (945364727) can be obtained adding 945364681 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 843031225 + 102333456 = 29035^2 + 10116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-945364681 is a prime.

It is a super-2 number, since 2×945364681² = 1787428760164463522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (945364601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472682340 + 472682341.

It is an arithmetic number, because the mean of its divisors is an integer number (472682341).

Almost surely, 2^945364681 is an apocalyptic number.

It is an amenable number.

945364681 is a deficient number, since it is larger than the sum of its proper divisors (1).

945364681 is an equidigital number, since it uses as much as digits as its factorization.

945364681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The square root of 945364681 is about 30746.7832626439. The cubic root of 945364681 is about 981.4461091748.

The spelling of 945364681 in words is "nine hundred forty-five million, three hundred sixty-four thousand, six hundred eighty-one".