12752396145 has 12 divisors (see below), whose sum is σ = 22104153396. Its totient is φ = 6801277920.

The previous prime is 12752396089. The next prime is 12752396149. The reversal of 12752396145 is 54169325721.

12752396145 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 23 + 9 + 614 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10168503921 + 2583892224 = 100839^2 + 50832^2 .

It is not a de Polignac number, because 12752396145 - 2⁶ = 12752396081 is a prime.

It is a super-2 number, since 2×12752396145² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 283386581 = 12752396145 / (1 + 2 + 7 + 5 + 2 + 3 + 9 + 6 + 1 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 12752396145.

It is not an unprimeable number, because it can be changed into a prime (12752396149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141693246 + ... + 141693335.

It is an arithmetic number, because the mean of its divisors is an integer number (1842012783).

Almost surely, 2^12752396145 is an apocalyptic number.

12752396145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12752396145 is a deficient number, since it is larger than the sum of its proper divisors (9351757251).

12752396145 is a wasteful number, since it uses less digits than its factorization.

12752396145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283386592 (or 283386589 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The spelling of 12752396145 in words is "twelve billion, seven hundred fifty-two million, three hundred ninety-six thousand, one hundred forty-five".