1144497238561 has 8 divisors (see below), whose sum is σ = 1152121731264. Its totient is φ = 1136873338800.

The previous prime is 1144497238553. The next prime is 1144497238583. The reversal of 1144497238561 is 1658327944411.

It is a happy number.

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 1144497238561 - 2³ = 1144497238553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144497238531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4135806 + ... + 4403848.

It is an arithmetic number, because the mean of its divisors is an integer number (144015216408).

Almost surely, 2^{1144497238561} is an apocalyptic number.

It is an amenable number.

1144497238561 is a deficient number, since it is larger than the sum of its proper divisors (7624492703).

1144497238561 is a wasteful number, since it uses less digits than its factorization.

1144497238561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296471.

The product of its digits is 5806080, while the sum is 55.

The spelling of 1144497238561 in words is "one trillion, one hundred forty-four billion, four hundred ninety-seven million, two hundred thirty-eight thousand, five hundred sixty-one".