1425968545 has 4 divisors (see below), whose sum is σ = 1711162260. Its totient is φ = 1140774832.

The previous prime is 1425968519. The next prime is 1425968549. The reversal of 1425968545 is 5458695241.

It is a happy number.

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 425638161 + 1000330384 = 20631^2 + 31628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425968545 - 2¹¹ = 1425966497 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1425968549) 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 in 3 ways as a sum of consecutive naturals, for example, 142596850 + ... + 142596859.

It is an arithmetic number, because the mean of its divisors is an integer number (427790565).

Almost surely, 2^1425968545 is an apocalyptic number.

It is an amenable number.

1425968545 is a deficient number, since it is larger than the sum of its proper divisors (285193715).

1425968545 is an equidigital number, since it uses as much as digits as its factorization.

1425968545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285193714.

The product of its digits is 1728000, while the sum is 49.

The square root of 1425968545 is about 37761.9986891584. The cubic root of 1425968545 is about 1125.5634497688.

The spelling of 1425968545 in words is "one billion, four hundred twenty-five million, nine hundred sixty-eight thousand, five hundred forty-five".