1075561313 has 4 divisors (see below), whose sum is σ = 1082412180. Its totient is φ = 1068710448.

The previous prime is 1075561303. The next prime is 1075561339. The reversal of 1075561313 is 3131655701.

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 294191104 + 781370209 = 17152^2 + 27953^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075561313 - 2⁴ = 1075561297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1075561313.

It is not an unprimeable number, because it can be changed into a prime (1075561303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3425198 + ... + 3425511.

It is an arithmetic number, because the mean of its divisors is an integer number (270603045).

Almost surely, 2^1075561313 is an apocalyptic number.

It is an amenable number.

1075561313 is a deficient number, since it is larger than the sum of its proper divisors (6850867).

1075561313 is an equidigital number, since it uses as much as digits as its factorization.

1075561313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6850866.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 1075561313 is about 32795.7514474055. The cubic root of 1075561313 is about 1024.5780735777.

The spelling of 1075561313 in words is "one billion, seventy-five million, five hundred sixty-one thousand, three hundred thirteen".