1045220506 has 12 divisors (see below), whose sum is σ = 1723318506. Its totient is φ = 475100120.

The previous prime is 1045220471. The next prime is 1045220509. The reversal of 1045220506 is 6050225401.

It can be written as a sum of positive squares in only one way, i.e., 723341025 + 321879481 = 26895^2 + 17941^2 .

It is not an unprimeable number, because it can be changed into a prime (1045220509) 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, 2159305 + ... + 2159788.

Almost surely, 2^1045220506 is an apocalyptic number.

1045220506 is a deficient number, since it is larger than the sum of its proper divisors (678098000).

1045220506 is a wasteful number, since it uses less digits than its factorization.

1045220506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319117 (or 4319106 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1045220506 is about 32329.8701822324. The cubic root of 1045220506 is about 1014.8518330640.

Adding to 1045220506 its reverse (6050225401), we get a palindrome (7095445907).

The spelling of 1045220506 in words is "one billion, forty-five million, two hundred twenty thousand, five hundred six".