154305052311481 has 2 divisors, whose sum is σ = 154305052311482. Its totient is φ = 154305052311480.

The previous prime is 154305052311451. The next prime is 154305052311523. The reversal of 154305052311481 is 184113250503451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143800485155856 + 10504567155625 = 11991684^2 + 3241075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154305052311481 is a prime.

It is a super-2 number, since 2×154305052311481² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154305052311451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77152526155740 + 77152526155741.

It is an arithmetic number, because the mean of its divisors is an integer number (77152526155741).

Almost surely, 2^{154305052311481} is an apocalyptic number.

It is an amenable number.

154305052311481 is a deficient number, since it is larger than the sum of its proper divisors (1).

154305052311481 is an equidigital number, since it uses as much as digits as its factorization.

154305052311481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 154305052311481 in words is "one hundred fifty-four trillion, three hundred five billion, fifty-two million, three hundred eleven thousand, four hundred eighty-one".