1445226413 has 6 divisors (see below), whose sum is σ = 1510794894. Its totient is φ = 1382389976.

The previous prime is 1445226407. The next prime is 1445226437. The reversal of 1445226413 is 3146225441.

It can be written as a sum of positive squares in only one way, i.e., 1045746244 + 399480169 = 32338^2 + 19987^2 .

It is not a de Polignac number, because 1445226413 - 2¹⁶ = 1445160877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1445226413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445226403) 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, 1365470 + ... + 1366527.

It is an arithmetic number, because the mean of its divisors is an integer number (251799149).

Almost surely, 2^1445226413 is an apocalyptic number.

It is an amenable number.

1445226413 is a deficient number, since it is larger than the sum of its proper divisors (65568481).

1445226413 is an equidigital number, since it uses as much as digits as its factorization.

1445226413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732043 (or 2732020 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 1445226413 is about 38016.1335882543. The cubic root of 1445226413 is about 1130.6077637477.

The spelling of 1445226413 in words is "one billion, four hundred forty-five million, two hundred twenty-six thousand, four hundred thirteen".