1125534040 has 32 divisors (see below), whose sum is σ = 2533484880. Its totient is φ = 450029952.

The previous prime is 1125534037. The next prime is 1125534061. The reversal of 1125534040 is 404355211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1125533996 and 1125534014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137914 + ... + 145846.

Almost surely, 2^1125534040 is an apocalyptic number.

1125534040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125534040 is an abundant number, since it is smaller than the sum of its proper divisors (1407950840).

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

1125534040 is a wasteful number, since it uses less digits than its factorization.

1125534040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11491 (or 11487 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1125534040 is about 33548.9797162298. The cubic root of 1125534040 is about 1040.2064555611.

Adding to 1125534040 its reverse (404355211), we get a palindrome (1529889251).

The spelling of 1125534040 in words is "one billion, one hundred twenty-five million, five hundred thirty-four thousand, forty".