45444540149 has 2 divisors, whose sum is σ = 45444540150. Its totient is φ = 45444540148.

The previous prime is 45444540143. The next prime is 45444540151. The reversal of 45444540149 is 94104544454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37841920900 + 7602619249 = 194530^2 + 87193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45444540149 is a prime.

Together with 45444540151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45444540143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22722270074 + 22722270075.

It is an arithmetic number, because the mean of its divisors is an integer number (22722270075).

Almost surely, 2^45444540149 is an apocalyptic number.

It is an amenable number.

45444540149 is a deficient number, since it is larger than the sum of its proper divisors (1).

45444540149 is an equidigital number, since it uses as much as digits as its factorization.

45444540149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 45444540149 in words is "forty-five billion, four hundred forty-four million, five hundred forty thousand, one hundred forty-nine".