1008445545 has 80 divisors (see below), whose sum is σ = 1872121680. Its totient is φ = 518939136.

The previous prime is 1008445519. The next prime is 1008445547. The reversal of 1008445545 is 5455448001.

It is a happy number.

1008445545 is a `hidden beast` number, since 100 + 8 + 4 + 4 + 5 + 545 = 666.

1008445545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 65464281 + 942981264 = 8091^2 + 30708^2 .

It is not a de Polignac number, because 1008445545 - 2⁶ = 1008445481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1008445547) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2592211 + ... + 2592599.

It is an arithmetic number, because the mean of its divisors is an integer number (23401521).

Almost surely, 2^1008445545 is an apocalyptic number.

1008445545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1008445545 is a deficient number, since it is larger than the sum of its proper divisors (863676135).

1008445545 is a wasteful number, since it uses less digits than its factorization.

1008445545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 1008445545 is about 31756.0316318019. The cubic root of 1008445545 is about 1002.8072933958.

The spelling of 1008445545 in words is "one billion, eight million, four hundred forty-five thousand, five hundred forty-five".