145525261311613 has 2 divisors, whose sum is σ = 145525261311614. Its totient is φ = 145525261311612.

The previous prime is 145525261311611. The next prime is 145525261311631. The reversal of 145525261311613 is 316113162525541.

Together with next prime (145525261311631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107974813734649 + 37550447576964 = 10391093^2 + 6127842^2 .

It is an emirp because it is prime and its reverse (316113162525541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145525261311613 - 2¹ = 145525261311611 is a prime.

Together with 145525261311611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145525261311611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72762630655806 + 72762630655807.

It is an arithmetic number, because the mean of its divisors is an integer number (72762630655807).

Almost surely, 2^{145525261311613} is an apocalyptic number.

It is an amenable number.

145525261311613 is a deficient number, since it is larger than the sum of its proper divisors (1).

145525261311613 is an equidigital number, since it uses as much as digits as its factorization.

145525261311613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 46.

The spelling of 145525261311613 in words is "one hundred forty-five trillion, five hundred twenty-five billion, two hundred sixty-one million, three hundred eleven thousand, six hundred thirteen".