12252451612145 has 4 divisors (see below), whose sum is σ = 14702941934580. Its totient is φ = 9801961289712.

The previous prime is 12252451612091. The next prime is 12252451612189. The reversal of 12252451612145 is 54121615425221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3841239368464 + 8411212243681 = 1959908^2 + 2900209^2 .

It is a cyclic number.

It is not a de Polignac number, because 12252451612145 - 2⁸ = 12252451611889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225245161210 + ... + 1225245161219.

It is an arithmetic number, because the mean of its divisors is an integer number (3675735483645).

Almost surely, 2^{12252451612145} is an apocalyptic number.

It is an amenable number.

12252451612145 is a deficient number, since it is larger than the sum of its proper divisors (2450490322435).

12252451612145 is an equidigital number, since it uses as much as digits as its factorization.

12252451612145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450490322434.

The product of its digits is 192000, while the sum is 41.

The spelling of 12252451612145 in words is "twelve trillion, two hundred fifty-two billion, four hundred fifty-one million, six hundred twelve thousand, one hundred forty-five".