45320454181 has 2 divisors, whose sum is σ = 45320454182. Its totient is φ = 45320454180.

The previous prime is 45320454133. The next prime is 45320454203. The reversal of 45320454181 is 18145402354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43226568100 + 2093886081 = 207910^2 + 45759^2 .

It is a cyclic number.

It is not a de Polignac number, because 45320454181 - 2⁹ = 45320453669 is a prime.

It is a super-2 number, since 2×45320454181² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45320454181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45320457181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22660227090 + 22660227091.

It is an arithmetic number, because the mean of its divisors is an integer number (22660227091).

Almost surely, 2^45320454181 is an apocalyptic number.

It is an amenable number.

45320454181 is a deficient number, since it is larger than the sum of its proper divisors (1).

45320454181 is an equidigital number, since it uses as much as digits as its factorization.

45320454181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 45320454181 in words is "forty-five billion, three hundred twenty million, four hundred fifty-four thousand, one hundred eighty-one".