45153510581 has 2 divisors, whose sum is σ = 45153510582. Its totient is φ = 45153510580.

The previous prime is 45153510511. The next prime is 45153510613. The reversal of 45153510581 is 18501535154.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41385392356 + 3768118225 = 203434^2 + 61385^2 .

It is a cyclic number.

It is not a de Polignac number, because 45153510581 - 2³⁰ = 44079768757 is a prime.

It is a super-2 number, since 2×45153510581² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45153510511) 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, 22576755290 + 22576755291.

It is an arithmetic number, because the mean of its divisors is an integer number (22576755291).

Almost surely, 2^45153510581 is an apocalyptic number.

It is an amenable number.

45153510581 is a deficient number, since it is larger than the sum of its proper divisors (1).

45153510581 is an equidigital number, since it uses as much as digits as its factorization.

45153510581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 45153510581 in words is "forty-five billion, one hundred fifty-three million, five hundred ten thousand, five hundred eighty-one".