1045221455 has 8 divisors (see below), whose sum is σ = 1328046192. Its totient is φ = 786990208.

The previous prime is 1045221413. The next prime is 1045221469. The reversal of 1045221455 is 5541225401.

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

It is a cyclic number.

It is not a de Polignac number, because 1045221455 - 2¹⁰ = 1045220431 is a prime.

It is a Duffinian number.

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, 6148277 + ... + 6148446.

It is an arithmetic number, because the mean of its divisors is an integer number (166005774).

Almost surely, 2^1045221455 is an apocalyptic number.

1045221455 is a deficient number, since it is larger than the sum of its proper divisors (282824737).

1045221455 is a wasteful number, since it uses less digits than its factorization.

1045221455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12296745.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1045221455 is about 32329.8848590588. The cubic root of 1045221455 is about 1014.8521402062.

Adding to 1045221455 its reverse (5541225401), we get a palindrome (6586446856).

The spelling of 1045221455 in words is "one billion, forty-five million, two hundred twenty-one thousand, four hundred fifty-five".