1125694559 has 8 divisors (see below), whose sum is σ = 1300267728. Its totient is φ = 963160960.

The previous prime is 1125694489. The next prime is 1125694561. The reversal of 1125694559 is 9554965211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1125694559 - 2⁸ = 1125694303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125694859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3009692 + ... + 3010065.

It is an arithmetic number, because the mean of its divisors is an integer number (162533466).

Almost surely, 2^1125694559 is an apocalyptic number.

1125694559 is a deficient number, since it is larger than the sum of its proper divisors (174573169).

1125694559 is a wasteful number, since it uses less digits than its factorization.

1125694559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019785.

The product of its digits is 486000, while the sum is 47.

The square root of 1125694559 is about 33551.3719391622. The cubic root of 1125694559 is about 1040.2559031883.

The spelling of 1125694559 in words is "one billion, one hundred twenty-five million, six hundred ninety-four thousand, five hundred fifty-nine".