1045445553 has 12 divisors (see below), whose sum is σ = 1511269188. Its totient is φ = 696418560.

The previous prime is 1045445521. The next prime is 1045445587. The reversal of 1045445553 is 3555445401.

1045445553 is a `hidden beast` number, since 10 + 4 + 54 + 45 + 553 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 738915489 + 306530064 = 27183^2 + 17508^2 .

It is not a de Polignac number, because 1045445553 - 2⁵ = 1045445521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045455553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33108 + ... + 56453.

It is an arithmetic number, because the mean of its divisors is an integer number (125939099).

Almost surely, 2^1045445553 is an apocalyptic number.

It is an amenable number.

1045445553 is a deficient number, since it is larger than the sum of its proper divisors (465823635).

1045445553 is a wasteful number, since it uses less digits than its factorization.

1045445553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90864 (or 90861 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 1045445553 is about 32333.3504759405. The cubic root of 1045445553 is about 1014.9246639386.

The spelling of 1045445553 in words is "one billion, forty-five million, four hundred forty-five thousand, five hundred fifty-three".