5445242981 has 2 divisors, whose sum is σ = 5445242982. Its totient is φ = 5445242980.

The previous prime is 5445242977. The next prime is 5445243007. The reversal of 5445242981 is 1892425445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3558122500 + 1887120481 = 59650^2 + 43441^2 .

It is a cyclic number.

It is not a de Polignac number, because 5445242981 - 2² = 5445242977 is a prime.

It is a super-2 number, since 2×5445242981² = 59301342244259532722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5445248981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2722621490 + 2722621491.

It is an arithmetic number, because the mean of its divisors is an integer number (2722621491).

Almost surely, 2^5445242981 is an apocalyptic number.

It is an amenable number.

5445242981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5445242981 is an equidigital number, since it uses as much as digits as its factorization.

5445242981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460800, while the sum is 44.

The square root of 5445242981 is about 73791.8896695294. The cubic root of 5445242981 is about 1759.2966995624.

The spelling of 5445242981 in words is "five billion, four hundred forty-five million, two hundred forty-two thousand, nine hundred eighty-one".