1365144345421 has 8 divisors (see below), whose sum is σ = 1373260369824. Its totient is φ = 1357030907760.

The previous prime is 1365144345419. The next prime is 1365144345457. The reversal of 1365144345421 is 1245434415631.

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 1365144345421 - 2¹ = 1365144345419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365144315421) 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, 417130 + ... + 1704196.

It is an arithmetic number, because the mean of its divisors is an integer number (171657546228).

Almost surely, 2^{1365144345421} is an apocalyptic number.

It is an amenable number.

1365144345421 is a deficient number, since it is larger than the sum of its proper divisors (8116024403).

1365144345421 is a wasteful number, since it uses less digits than its factorization.

1365144345421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293371.

The product of its digits is 691200, while the sum is 43.

The spelling of 1365144345421 in words is "one trillion, three hundred sixty-five billion, one hundred forty-four million, three hundred forty-five thousand, four hundred twenty-one".