1345044450521 has 8 divisors (see below), whose sum is σ = 1345561415520. Its totient is φ = 1344527587872.

The previous prime is 1345044450473. The next prime is 1345044450527. The reversal of 1345044450521 is 1250544405431.

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 1345044450521 - 2¹⁸ = 1345044188377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345044450527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34715666 + ... + 34754388.

It is an arithmetic number, because the mean of its divisors is an integer number (168195176940).

Almost surely, 2^{1345044450521} is an apocalyptic number.

It is an amenable number.

1345044450521 is a deficient number, since it is larger than the sum of its proper divisors (516964999).

1345044450521 is an equidigital number, since it uses as much as digits as its factorization.

1345044450521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51175.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 1345044450521 its reverse (1250544405431), we get a palindrome (2595588855952).

The spelling of 1345044450521 in words is "one trillion, three hundred forty-five billion, forty-four million, four hundred fifty thousand, five hundred twenty-one".