240054457225981 has 2 divisors, whose sum is σ = 240054457225982. Its totient is φ = 240054457225980.

The previous prime is 240054457225909. The next prime is 240054457225991. The reversal of 240054457225981 is 189522754450042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205556278770756 + 34498178455225 = 14337234^2 + 5873515^2 .

It is a cyclic number.

It is not a de Polignac number, because 240054457225981 - 2¹³ = 240054457217789 is a prime.

It is a super-2 number, since 2×240054457225981² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240054457225991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120027228612990 + 120027228612991.

It is an arithmetic number, because the mean of its divisors is an integer number (120027228612991).

Almost surely, 2^{240054457225981} is an apocalyptic number.

It is an amenable number.

240054457225981 is a deficient number, since it is larger than the sum of its proper divisors (1).

240054457225981 is an equidigital number, since it uses as much as digits as its factorization.

240054457225981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256000, while the sum is 58.

The spelling of 240054457225981 in words is "two hundred forty trillion, fifty-four billion, four hundred fifty-seven million, two hundred twenty-five thousand, nine hundred eighty-one".