1125512246 has 4 divisors (see below), whose sum is σ = 1688268372. Its totient is φ = 562756122.

The previous prime is 1125512233. The next prime is 1125512249. The reversal of 1125512246 is 6422155211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6422155211 = 19 ⋅338008169.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125512249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281378060 + ... + 281378063.

It is an arithmetic number, because the mean of its divisors is an integer number (422067093).

Almost surely, 2^1125512246 is an apocalyptic number.

1125512246 is a deficient number, since it is larger than the sum of its proper divisors (562756126).

1125512246 is an equidigital number, since it uses as much as digits as its factorization.

1125512246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562756125.

The product of its digits is 4800, while the sum is 29.

The square root of 1125512246 is about 33548.6549059720. The cubic root of 1125512246 is about 1040.1997415910.

Adding to 1125512246 its reverse (6422155211), we get a palindrome (7547667457).

The spelling of 1125512246 in words is "one billion, one hundred twenty-five million, five hundred twelve thousand, two hundred forty-six".