45153042581 has 2 divisors, whose sum is σ = 45153042582. Its totient is φ = 45153042580.

The previous prime is 45153042577. The next prime is 45153042589. The reversal of 45153042581 is 18524035154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44753402500 + 399640081 = 211550^2 + 19991^2 .

It is a cyclic number.

It is not a de Polignac number, because 45153042581 - 2² = 45153042577 is a prime.

It is a super-2 number, since 2×45153042581² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45153042589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22576521290 + 22576521291.

It is an arithmetic number, because the mean of its divisors is an integer number (22576521291).

Almost surely, 2^45153042581 is an apocalyptic number.

It is an amenable number.

45153042581 is a deficient number, since it is larger than the sum of its proper divisors (1).

45153042581 is an equidigital number, since it uses as much as digits as its factorization.

45153042581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 45153042581 in words is "forty-five billion, one hundred fifty-three million, forty-two thousand, five hundred eighty-one".