4445181137 has 2 divisors, whose sum is σ = 4445181138. Its totient is φ = 4445181136.

The previous prime is 4445181133. The next prime is 4445181149. The reversal of 4445181137 is 7311815444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4379262976 + 65918161 = 66176^2 + 8119^2 .

It is a cyclic number.

It is not a de Polignac number, because 4445181137 - 2² = 4445181133 is a prime.

It is a super-2 number, since 2×4445181137² = 39519270681481225538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4445181137.

It is not a weakly prime, because it can be changed into another prime (4445181133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222590568 + 2222590569.

It is an arithmetic number, because the mean of its divisors is an integer number (2222590569).

Almost surely, 2^4445181137 is an apocalyptic number.

It is an amenable number.

4445181137 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445181137 is an equidigital number, since it uses as much as digits as its factorization.

4445181137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 4445181137 is about 66672.1916318940. The cubic root of 4445181137 is about 1644.2322198720.

The spelling of 4445181137 in words is "four billion, four hundred forty-five million, one hundred eighty-one thousand, one hundred thirty-seven".