155857300013 has 2 divisors, whose sum is σ = 155857300014. Its totient is φ = 155857300012.

The previous prime is 155857299977. The next prime is 155857300031. The reversal of 155857300013 is 310003758551.

It is a happy number.

Together with next prime (155857300031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150169425289 + 5687874724 = 387517^2 + 75418^2 .

It is an emirp because it is prime and its reverse (310003758551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155857300013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155857300013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155857300043) 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, 77928650006 + 77928650007.

It is an arithmetic number, because the mean of its divisors is an integer number (77928650007).

Almost surely, 2^155857300013 is an apocalyptic number.

It is an amenable number.

155857300013 is a deficient number, since it is larger than the sum of its proper divisors (1).

155857300013 is an equidigital number, since it uses as much as digits as its factorization.

155857300013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 155857300013 in words is "one hundred fifty-five billion, eight hundred fifty-seven million, three hundred thousand, thirteen".