1125243353 has 8 divisors (see below), whose sum is σ = 1215940488. Its totient is φ = 1035137664.

The previous prime is 1125243347. The next prime is 1125243433. The reversal of 1125243353 is 3533425211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 412780489 + 712462864 = 20317^2 + 26692^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1125243353 - 2¹² = 1125239257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1127243353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143900 + ... + 151517.

It is an arithmetic number, because the mean of its divisors is an integer number (151992561).

Almost surely, 2^1125243353 is an apocalyptic number.

1125243353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1125243353 is a deficient number, since it is larger than the sum of its proper divisors (90697135).

1125243353 is a wasteful number, since it uses less digits than its factorization.

1125243353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295723.

The product of its digits is 10800, while the sum is 29.

The square root of 1125243353 is about 33544.6471586750. The cubic root of 1125243353 is about 1040.1168979177.

Adding to 1125243353 its reverse (3533425211), we get a palindrome (4658668564).

The spelling of 1125243353 in words is "one billion, one hundred twenty-five million, two hundred forty-three thousand, three hundred fifty-three".