1445432039 has 2 divisors, whose sum is σ = 1445432040. Its totient is φ = 1445432038.

The previous prime is 1445431997. The next prime is 1445432099. The reversal of 1445432039 is 9302345441.

It is a weak prime.

It is an emirp because it is prime and its reverse (9302345441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445432039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445432099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722716019 + 722716020.

It is an arithmetic number, because the mean of its divisors is an integer number (722716020).

Almost surely, 2^1445432039 is an apocalyptic number.

1445432039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445432039 is an equidigital number, since it uses as much as digits as its factorization.

1445432039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 1445432039 is about 38018.8379491010. The cubic root of 1445432039 is about 1130.6613819501.

The spelling of 1445432039 in words is "one billion, four hundred forty-five million, four hundred thirty-two thousand, thirty-nine".