155122443150481 has 2 divisors, whose sum is σ = 155122443150482. Its totient is φ = 155122443150480.

The previous prime is 155122443150413. The next prime is 155122443150511. The reversal of 155122443150481 is 184051344221551.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142869642990481 + 12252800160000 = 11952809^2 + 3500400^2 .

It is a cyclic number.

It is not a de Polignac number, because 155122443150481 - 2³⁹ = 154572687336593 is a prime.

It is a super-2 number, since 2×155122443150481² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (155122443153481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77561221575240 + 77561221575241.

It is an arithmetic number, because the mean of its divisors is an integer number (77561221575241).

Almost surely, 2^{155122443150481} is an apocalyptic number.

It is an amenable number.

155122443150481 is a deficient number, since it is larger than the sum of its proper divisors (1).

155122443150481 is an equidigital number, since it uses as much as digits as its factorization.

155122443150481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768000, while the sum is 46.

The spelling of 155122443150481 in words is "one hundred fifty-five trillion, one hundred twenty-two billion, four hundred forty-three million, one hundred fifty thousand, four hundred eighty-one".