1125133599 has 16 divisors (see below), whose sum is σ = 1528525440. Its totient is φ = 735964320.

The previous prime is 1125133591. The next prime is 1125133601. The reversal of 1125133599 is 9953315211.

It is not a de Polignac number, because 1125133599 - 2³ = 1125133591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125133591) 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 15 ways as a sum of consecutive naturals, for example, 91009 + ... + 102629.

It is an arithmetic number, because the mean of its divisors is an integer number (95532840).

Almost surely, 2^1125133599 is an apocalyptic number.

1125133599 is a deficient number, since it is larger than the sum of its proper divisors (403391841).

1125133599 is a wasteful number, since it uses less digits than its factorization.

1125133599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12230.

The product of its digits is 36450, while the sum is 39.

The square root of 1125133599 is about 33543.0111796780. The cubic root of 1125133599 is about 1040.0830798399.

It can be divided in two parts, 11251 and 33599, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 1125133599 in words is "one billion, one hundred twenty-five million, one hundred thirty-three thousand, five hundred ninety-nine".