1445322413 has 6 divisors (see below), whose sum is σ = 1450908522. Its totient is φ = 1439741040.

The previous prime is 1445322377. The next prime is 1445322421. The reversal of 1445322413 is 3142235441.

It can be written as a sum of positive squares in 3 ways, for example, as 816416329 + 628906084 = 28573^2 + 25078^2 .

It is not a de Polignac number, because 1445322413 - 2¹² = 1445318317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445322443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 649643 + ... + 651863.

It is an arithmetic number, because the mean of its divisors is an integer number (241818087).

Almost surely, 2^1445322413 is an apocalyptic number.

It is an amenable number.

1445322413 is a deficient number, since it is larger than the sum of its proper divisors (5586109).

1445322413 is an frugal number, since it uses more digits than its factorization.

1445322413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735 (or 2514 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 1445322413 is about 38017.3961891132. The cubic root of 1445322413 is about 1130.6327969515.

Adding to 1445322413 its reverse (3142235441), we get a palindrome (4587557854).

The spelling of 1445322413 in words is "one billion, four hundred forty-five million, three hundred twenty-two thousand, four hundred thirteen".