45256321193 has 2 divisors, whose sum is σ = 45256321194. Its totient is φ = 45256321192.

The previous prime is 45256321139. The next prime is 45256321219. The reversal of 45256321193 is 39112365254.

Together with previous prime (45256321139) 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., 44972836624 + 283484569 = 212068^2 + 16837^2 .

It is a cyclic number.

It is not a de Polignac number, because 45256321193 - 2⁸ = 45256320937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45256321193.

It is not a weakly prime, because it can be changed into another prime (45256321133) 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, 22628160596 + 22628160597.

It is an arithmetic number, because the mean of its divisors is an integer number (22628160597).

Almost surely, 2^45256321193 is an apocalyptic number.

It is an amenable number.

45256321193 is a deficient number, since it is larger than the sum of its proper divisors (1).

45256321193 is an equidigital number, since it uses as much as digits as its factorization.

45256321193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 41.

The spelling of 45256321193 in words is "forty-five billion, two hundred fifty-six million, three hundred twenty-one thousand, one hundred ninety-three".