1245331241045 has 8 divisors (see below), whose sum is σ = 1582303224024. Its totient is φ = 937661169664.

The previous prime is 1245331241039. The next prime is 1245331241053. The reversal of 1245331241045 is 5401421335421.

It can be written as a sum of positive squares in 4 ways, for example, as 621916772689 + 623414468356 = 788617^2 + 789566^2 .

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

It is not a de Polignac number, because 1245331241045 - 2²² = 1245327046741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1245331240996 and 1245331241014.

It is a congruent number.

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, 7325477804 + ... + 7325477973.

It is an arithmetic number, because the mean of its divisors is an integer number (197787903003).

Almost surely, 2^{1245331241045} is an apocalyptic number.

It is an amenable number.

1245331241045 is a deficient number, since it is larger than the sum of its proper divisors (336971982979).

1245331241045 is a wasteful number, since it uses less digits than its factorization.

1245331241045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14650955799.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 1245331241045 its reverse (5401421335421), we get a palindrome (6646752576466).

The spelling of 1245331241045 in words is "one trillion, two hundred forty-five billion, three hundred thirty-one million, two hundred forty-one thousand, forty-five".