155241130549 has 2 divisors, whose sum is σ = 155241130550. Its totient is φ = 155241130548.

The previous prime is 155241130537. The next prime is 155241130559. The reversal of 155241130549 is 945031142551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155228120100 + 13010449 = 393990^2 + 3607^2 .

It is a cyclic number.

It is not a de Polignac number, because 155241130549 - 2²⁹ = 154704259637 is a prime.

It is a super-2 number, since 2×155241130549² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155241130559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77620565274 + 77620565275.

It is an arithmetic number, because the mean of its divisors is an integer number (77620565275).

Almost surely, 2^155241130549 is an apocalyptic number.

It is an amenable number.

155241130549 is a deficient number, since it is larger than the sum of its proper divisors (1).

155241130549 is an equidigital number, since it uses as much as digits as its factorization.

155241130549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 155241130549 in words is "one hundred fifty-five billion, two hundred forty-one million, one hundred thirty thousand, five hundred forty-nine".