1125135023 has 8 divisors (see below), whose sum is σ = 1138933536. Its totient is φ = 1111392000.

The previous prime is 1125135019. The next prime is 1125135029. The reversal of 1125135023 is 3205315211.

It is a happy number.

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 1125135023 - 2² = 1125135019 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 1125135023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125135029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27683 + ... + 54923.

It is an arithmetic number, because the mean of its divisors is an integer number (142366692).

Almost surely, 2^1125135023 is an apocalyptic number.

1125135023 is a deficient number, since it is larger than the sum of its proper divisors (13798513).

1125135023 is a wasteful number, since it uses less digits than its factorization.

1125135023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27745.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1125135023 is about 33543.0324061496. The cubic root of 1125135023 is about 1040.0835186256.

The spelling of 1125135023 in words is "one billion, one hundred twenty-five million, one hundred thirty-five thousand, twenty-three".