12775125145 has 8 divisors (see below), whose sum is σ = 15330892680. Its totient is φ = 10219605120.

The previous prime is 12775125127. The next prime is 12775125157. The reversal of 12775125145 is 54152157721.

It can be written as a sum of positive squares in 4 ways, for example, as 581002816 + 12194122329 = 24104^2 + 110427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12775125145 - 2⁵ = 12775125113 is a prime.

It is a super-2 number, since 2×12775125145² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12775125098 and 12775125107.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 82165 + ... + 179725.

It is an arithmetic number, because the mean of its divisors is an integer number (1916361585).

Almost surely, 2^12775125145 is an apocalyptic number.

It is an amenable number.

12775125145 is a deficient number, since it is larger than the sum of its proper divisors (2555767535).

12775125145 is an equidigital number, since it uses as much as digits as its factorization.

12775125145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123755.

The product of its digits is 98000, while the sum is 40.

The spelling of 12775125145 in words is "twelve billion, seven hundred seventy-five million, one hundred twenty-five thousand, one hundred forty-five".