1440453352109 has 2 divisors, whose sum is σ = 1440453352110. Its totient is φ = 1440453352108.

The previous prime is 1440453352097. The next prime is 1440453352147. The reversal of 1440453352109 is 9012533540441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1196420316100 + 244033036009 = 1093810^2 + 493997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440453352109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440453352189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720226676054 + 720226676055.

It is an arithmetic number, because the mean of its divisors is an integer number (720226676055).

Almost surely, 2^{1440453352109} is an apocalyptic number.

It is an amenable number.

1440453352109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440453352109 is an equidigital number, since it uses as much as digits as its factorization.

1440453352109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1440453352109 in words is "one trillion, four hundred forty billion, four hundred fifty-three million, three hundred fifty-two thousand, one hundred nine".