1054705609 has 4 divisors (see below), whose sum is σ = 1083211204. Its totient is φ = 1026200016.

The previous prime is 1054705601. The next prime is 1054705657. The reversal of 1054705609 is 9065074501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 831053584 + 223652025 = 28828^2 + 14955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054705609 - 2³ = 1054705601 is a prime.

It is a super-2 number, since 2×1054705609² = 2224807843312121762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 28505557 = 1054705609 / (1 + 0 + 5 + 4 + 7 + 0 + 5 + 6 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1054705601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14252742 + ... + 14252815.

It is an arithmetic number, because the mean of its divisors is an integer number (270802801).

Almost surely, 2^1054705609 is an apocalyptic number.

It is an amenable number.

1054705609 is a deficient number, since it is larger than the sum of its proper divisors (28505595).

1054705609 is an equidigital number, since it uses as much as digits as its factorization.

1054705609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28505594.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1054705609 is about 32476.2314470137. The cubic root of 1054705609 is about 1017.9124320136.

The spelling of 1054705609 in words is "one billion, fifty-four million, seven hundred five thousand, six hundred nine".