45130549 has 2 divisors, whose sum is σ = 45130550. Its totient is φ = 45130548.

The previous prime is 45130543. The next prime is 45130601. The reversal of 45130549 is 94503154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37429924 + 7700625 = 6118^2 + 2775^2 .

It is a cyclic number.

It is not a de Polignac number, because 45130549 - 2⁹ = 45130037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45130549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45130543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22565274 + 22565275.

It is an arithmetic number, because the mean of its divisors is an integer number (22565275).

Almost surely, 2^45130549 is an apocalyptic number.

It is an amenable number.

45130549 is a deficient number, since it is larger than the sum of its proper divisors (1).

45130549 is an equidigital number, since it uses as much as digits as its factorization.

45130549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 45130549 is about 6717.9274333681. The cubic root of 45130549 is about 356.0329604840.

The spelling of 45130549 in words is "forty-five million, one hundred thirty thousand, five hundred forty-nine".