1134575561 has 4 divisors (see below), whose sum is σ = 1296657792. Its totient is φ = 972493332.

The previous prime is 1134575551. The next prime is 1134575593. The reversal of 1134575561 is 1655754311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1655754311 = 359 ⋅4612129.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1134575561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1134575531) 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, 81041105 + ... + 81041118.

It is an arithmetic number, because the mean of its divisors is an integer number (324164448).

Almost surely, 2^1134575561 is an apocalyptic number.

It is an amenable number.

1134575561 is a deficient number, since it is larger than the sum of its proper divisors (162082231).

1134575561 is an equidigital number, since it uses as much as digits as its factorization.

1134575561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162082230.

The product of its digits is 63000, while the sum is 38.

The square root of 1134575561 is about 33683.4612384179. The cubic root of 1134575561 is about 1042.9843891439.

The spelling of 1134575561 in words is "one billion, one hundred thirty-four million, five hundred seventy-five thousand, five hundred sixty-one".