1445020670531 has 2 divisors, whose sum is σ = 1445020670532. Its totient is φ = 1445020670530.

The previous prime is 1445020670459. The next prime is 1445020670573. The reversal of 1445020670531 is 1350760205441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445020670531 is a prime.

It is a super-2 number, since 2×1445020670531² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1445020670591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722510335265 + 722510335266.

It is an arithmetic number, because the mean of its divisors is an integer number (722510335266).

Almost surely, 2^{1445020670531} is an apocalyptic number.

1445020670531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445020670531 is an equidigital number, since it uses as much as digits as its factorization.

1445020670531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 1445020670531 its reverse (1350760205441), we get a palindrome (2795780875972).

The spelling of 1445020670531 in words is "one trillion, four hundred forty-five billion, twenty million, six hundred seventy thousand, five hundred thirty-one".