1125511235 has 8 divisors (see below), whose sum is σ = 1357470576. Its totient is φ = 895837600.

The previous prime is 1125511229. The next prime is 1125511237. The reversal of 1125511235 is 5321155211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1125511235 - 2⁸ = 1125510979 is a prime.

It is a super-2 number, since 2×1125511235² = 2533551080222450450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125511237) 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, 570341 + ... + 572310.

It is an arithmetic number, because the mean of its divisors is an integer number (169683822).

Almost surely, 2^1125511235 is an apocalyptic number.

1125511235 is a deficient number, since it is larger than the sum of its proper divisors (231959341).

1125511235 is a wasteful number, since it uses less digits than its factorization.

1125511235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142853.

The product of its digits is 1500, while the sum is 26.

The square root of 1125511235 is about 33548.6398383004. The cubic root of 1125511235 is about 1040.1994301351.

Adding to 1125511235 its reverse (5321155211), we get a palindrome (6446666446).

The spelling of 1125511235 in words is "one billion, one hundred twenty-five million, five hundred eleven thousand, two hundred thirty-five".