1125440734 has 32 divisors (see below), whose sum is σ = 1890604800. Its totient is φ = 498014400.

The previous prime is 1125440731. The next prime is 1125440747. The reversal of 1125440734 is 4370445211.

It is a junction number, because it is equal to n+sod(n) for n = 1125440696 and 1125440705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125440731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539257 + ... + 541339.

It is an arithmetic number, because the mean of its divisors is an integer number (59081400).

Almost surely, 2^1125440734 is an apocalyptic number.

1125440734 is a deficient number, since it is larger than the sum of its proper divisors (765164066).

1125440734 is a wasteful number, since it uses less digits than its factorization.

1125440734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1125440734 is about 33547.5890937039. The cubic root of 1125440734 is about 1040.1777106328.

Adding to 1125440734 its reverse (4370445211), we get a palindrome (5495885945).

The spelling of 1125440734 in words is "one billion, one hundred twenty-five million, four hundred forty thousand, seven hundred thirty-four".