1445623113 has 32 divisors (see below), whose sum is σ = 2228198400. Its totient is φ = 824472000.

The previous prime is 1445623099. The next prime is 1445623129. The reversal of 1445623113 is 3113265441.

It is not a de Polignac number, because 1445623113 - 2⁹ = 1445622601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1445623183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87043 + ... + 102311.

It is an arithmetic number, because the mean of its divisors is an integer number (69631200).

Almost surely, 2^1445623113 is an apocalyptic number.

It is an amenable number.

1445623113 is a deficient number, since it is larger than the sum of its proper divisors (782575287).

1445623113 is a wasteful number, since it uses less digits than its factorization.

1445623113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15453.

The product of its digits is 8640, while the sum is 30.

The square root of 1445623113 is about 38021.3507519131. The cubic root of 1445623113 is about 1130.7112010741.

Adding to 1445623113 its reverse (3113265441), we get a palindrome (4558888554).

The spelling of 1445623113 in words is "one billion, four hundred forty-five million, six hundred twenty-three thousand, one hundred thirteen".