1245424455145 has 8 divisors (see below), whose sum is σ = 1609471603656. Its totient is φ = 919698059136.

The previous prime is 1245424455137. The next prime is 1245424455193. The reversal of 1245424455145 is 5415544245421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16228721664 + 1229195733481 = 127392^2 + 1108691^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1245424455145 - 2³ = 1245424455137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1245424455095 and 1245424455104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9580188052 + ... + 9580188181.

It is an arithmetic number, because the mean of its divisors is an integer number (201183950457).

Almost surely, 2^{1245424455145} is an apocalyptic number.

It is an amenable number.

1245424455145 is a deficient number, since it is larger than the sum of its proper divisors (364047148511).

1245424455145 is a wasteful number, since it uses less digits than its factorization.

1245424455145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19160376251.

The product of its digits is 2560000, while the sum is 46.

The spelling of 1245424455145 in words is "one trillion, two hundred forty-five billion, four hundred twenty-four million, four hundred fifty-five thousand, one hundred forty-five".