1045221445 has 8 divisors (see below), whose sum is σ = 1320279840. Its totient is φ = 792167760.

The previous prime is 1045221413. The next prime is 1045221469. The reversal of 1045221445 is 5441225401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1045221445 - 2⁵ = 1045221413 is a prime.

1045221445 is a modest number, since divided by 221445 gives 1045 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5501071 + ... + 5501260.

It is an arithmetic number, because the mean of its divisors is an integer number (165034980).

Almost surely, 2^1045221445 is an apocalyptic number.

It is an amenable number.

1045221445 is a deficient number, since it is larger than the sum of its proper divisors (275058395).

1045221445 is a wasteful number, since it uses less digits than its factorization.

1045221445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002355.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1045221445 is about 32329.8847044031. The cubic root of 1045221445 is about 1014.8521369697.

Adding to 1045221445 its reverse (5441225401), we get a palindrome (6486446846).

The spelling of 1045221445 in words is "one billion, forty-five million, two hundred twenty-one thousand, four hundred forty-five".