1005051445 has 4 divisors (see below), whose sum is σ = 1206061740. Its totient is φ = 804041152.

The previous prime is 1005051419. The next prime is 1005051469. The reversal of 1005051445 is 5441505001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5441505001 = 443 ⋅12283307.

It can be written as a sum of positive squares in 2 ways, for example, as 171112561 + 833938884 = 13081^2 + 28878^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005051445 - 2²³ = 996662837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100505140 + ... + 100505149.

It is an arithmetic number, because the mean of its divisors is an integer number (301515435).

Almost surely, 2^1005051445 is an apocalyptic number.

It is an amenable number.

1005051445 is a deficient number, since it is larger than the sum of its proper divisors (201010295).

1005051445 is an equidigital number, since it uses as much as digits as its factorization.

1005051445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201010294.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1005051445 is about 31702.5463488345. The cubic root of 1005051445 is about 1001.6809876970.

Adding to 1005051445 its reverse (5441505001), we get a palindrome (6446556446).

The spelling of 1005051445 in words is "one billion, five million, fifty-one thousand, four hundred forty-five".