1125121683 has 24 divisors (see below), whose sum is σ = 1778025168. Its totient is φ = 630791616.

The previous prime is 1125121667. The next prime is 1125121691. The reversal of 1125121683 is 3861215211.

It is not a de Polignac number, because 1125121683 - 2⁴ = 1125121667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1125121683.

It is not an unprimeable number, because it can be changed into a prime (1125121603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64416 + ... + 79997.

It is an arithmetic number, because the mean of its divisors is an integer number (74084382).

Almost surely, 2^1125121683 is an apocalyptic number.

1125121683 is a deficient number, since it is larger than the sum of its proper divisors (652903485).

1125121683 is a wasteful number, since it uses less digits than its factorization.

1125121683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144483 (or 144476 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 1125121683 is about 33542.8335565140. The cubic root of 1125121683 is about 1040.0794080763.

Adding to 1125121683 its reverse (3861215211), we get a palindrome (4986336894).

The spelling of 1125121683 in words is "one billion, one hundred twenty-five million, one hundred twenty-one thousand, six hundred eighty-three".