1244535342145 has 16 divisors (see below), whose sum is σ = 1503022929408. Its totient is φ = 989254728000.

The previous prime is 1244535342119. The next prime is 1244535342209. The reversal of 1244535342145 is 5412435354421.

It is a happy number.

It is not a de Polignac number, because 1244535342145 - 2²¹ = 1244533244993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101469 + ... + 1580938.

It is an arithmetic number, because the mean of its divisors is an integer number (93938933088).

Almost surely, 2^{1244535342145} is an apocalyptic number.

It is an amenable number.

1244535342145 is a deficient number, since it is larger than the sum of its proper divisors (258487587263).

1244535342145 is a wasteful number, since it uses less digits than its factorization.

1244535342145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683360.

The product of its digits is 1152000, while the sum is 43.

The spelling of 1244535342145 in words is "one trillion, two hundred forty-four billion, five hundred thirty-five million, three hundred forty-two thousand, one hundred forty-five".