1440453352189 has 2 divisors, whose sum is σ = 1440453352190. Its totient is φ = 1440453352188.

The previous prime is 1440453352157. The next prime is 1440453352259. The reversal of 1440453352189 is 9812533540441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010543646564 + 429909705625 = 1005258^2 + 655675^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440453352189 - 2⁵ = 1440453352157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440453352109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720226676094 + 720226676095.

It is an arithmetic number, because the mean of its divisors is an integer number (720226676095).

Almost surely, 2^{1440453352189} is an apocalyptic number.

It is an amenable number.

1440453352189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440453352189 is an equidigital number, since it uses as much as digits as its factorization.

1440453352189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 1440453352189 in words is "one trillion, four hundred forty billion, four hundred fifty-three million, three hundred fifty-two thousand, one hundred eighty-nine".