1125656583 has 4 divisors (see below), whose sum is σ = 1500875448. Its totient is φ = 750437720.

The previous prime is 1125656563. The next prime is 1125656591. The reversal of 1125656583 is 3856565211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3856565211 = 3 ⋅1285521737.

It is a cyclic number.

It is not a de Polignac number, because 1125656583 - 2⁵ = 1125656551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125656563) 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, 187609428 + ... + 187609433.

It is an arithmetic number, because the mean of its divisors is an integer number (375218862).

Almost surely, 2^1125656583 is an apocalyptic number.

1125656583 is a deficient number, since it is larger than the sum of its proper divisors (375218865).

1125656583 is an equidigital number, since it uses as much as digits as its factorization.

1125656583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375218864.

The product of its digits is 216000, while the sum is 42.

The square root of 1125656583 is about 33550.8059962797. The cubic root of 1125656583 is about 1040.2442051654.

The spelling of 1125656583 in words is "one billion, one hundred twenty-five million, six hundred fifty-six thousand, five hundred eighty-three".