1125540726 has 32 divisors (see below), whose sum is σ = 2393048448. Its totient is φ = 351696000.

The previous prime is 1125540697. The next prime is 1125540737. The reversal of 1125540726 is 6270455211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3621 + ... + 47583.

It is an arithmetic number, because the mean of its divisors is an integer number (74782764).

Almost surely, 2^1125540726 is an apocalyptic number.

1125540726 is an abundant number, since it is smaller than the sum of its proper divisors (1267507722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125540726 is a wasteful number, since it uses less digits than its factorization.

1125540726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44236.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 1125540726 is about 33549.0793614370. The cubic root of 1125540726 is about 1040.2085152668.

Adding to 1125540726 its reverse (6270455211), we get a palindrome (7395995937).

The spelling of 1125540726 in words is "one billion, one hundred twenty-five million, five hundred forty thousand, seven hundred twenty-six".