1445252539 has 2 divisors, whose sum is σ = 1445252540. Its totient is φ = 1445252538.

The previous prime is 1445252527. The next prime is 1445252551. The reversal of 1445252539 is 9352525441.

It is a balanced prime because it is at equal distance from previous prime (1445252527) and next prime (1445252551).

It is a cyclic number.

It is not a de Polignac number, because 1445252539 - 2⁷ = 1445252411 is a prime.

It is not a weakly prime, because it can be changed into another prime (1445252509) 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, 722626269 + 722626270.

It is an arithmetic number, because the mean of its divisors is an integer number (722626270).

Almost surely, 2^1445252539 is an apocalyptic number.

1445252539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445252539 is an equidigital number, since it uses as much as digits as its factorization.

1445252539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 40.

The square root of 1445252539 is about 38016.4772039704. The cubic root of 1445252539 is about 1130.6145765396.

The spelling of 1445252539 in words is "one billion, four hundred forty-five million, two hundred fifty-two thousand, five hundred thirty-nine".