155126252513 has 2 divisors, whose sum is σ = 155126252514. Its totient is φ = 155126252512.

The previous prime is 155126252507. The next prime is 155126252521. The reversal of 155126252513 is 315252621551.

155126252513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154191299584 + 934952929 = 392672^2 + 30577^2 .

It is a cyclic number.

It is not a de Polignac number, because 155126252513 - 2²⁸ = 154857817057 is a prime.

It is not a weakly prime, because it can be changed into another prime (155126255513) 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, 77563126256 + 77563126257.

It is an arithmetic number, because the mean of its divisors is an integer number (77563126257).

Almost surely, 2^155126252513 is an apocalyptic number.

It is an amenable number.

155126252513 is a deficient number, since it is larger than the sum of its proper divisors (1).

155126252513 is an equidigital number, since it uses as much as digits as its factorization.

155126252513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90000, while the sum is 38.

The spelling of 155126252513 in words is "one hundred fifty-five billion, one hundred twenty-six million, two hundred fifty-two thousand, five hundred thirteen".