45024731135981 has 2 divisors, whose sum is σ = 45024731135982. Its totient is φ = 45024731135980.

The previous prime is 45024731135957. The next prime is 45024731136053. The reversal of 45024731135981 is 18953113742054.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26466806268100 + 18557924867881 = 5144590^2 + 4307891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45024731135981 is a prime.

It is a super-2 number, since 2×45024731135981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45024731135941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22512365567990 + 22512365567991.

It is an arithmetic number, because the mean of its divisors is an integer number (22512365567991).

Almost surely, 2^{45024731135981} is an apocalyptic number.

It is an amenable number.

45024731135981 is a deficient number, since it is larger than the sum of its proper divisors (1).

45024731135981 is an equidigital number, since it uses as much as digits as its factorization.

45024731135981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 45024731135981 in words is "forty-five trillion, twenty-four billion, seven hundred thirty-one million, one hundred thirty-five thousand, nine hundred eighty-one".