45126154981 has 2 divisors, whose sum is σ = 45126154982. Its totient is φ = 45126154980.

The previous prime is 45126154973. The next prime is 45126155083. The reversal of 45126154981 is 18945162154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35792856100 + 9333298881 = 189190^2 + 96609^2 .

It is a cyclic number.

It is not a de Polignac number, because 45126154981 - 2³ = 45126154973 is a prime.

It is a super-2 number, since 2×45126154981² (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 (45126154921) 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, 22563077490 + 22563077491.

It is an arithmetic number, because the mean of its divisors is an integer number (22563077491).

Almost surely, 2^45126154981 is an apocalyptic number.

It is an amenable number.

45126154981 is a deficient number, since it is larger than the sum of its proper divisors (1).

45126154981 is an equidigital number, since it uses as much as digits as its factorization.

45126154981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 46.

The spelling of 45126154981 in words is "forty-five billion, one hundred twenty-six million, one hundred fifty-four thousand, nine hundred eighty-one".