1121245241 has 8 divisors (see below), whose sum is σ = 1160390280. Its totient is φ = 1082132352.

The previous prime is 1121245187. The next prime is 1121245247. The reversal of 1121245241 is 1425421211.

It can be written as a sum of positive squares in 4 ways, for example, as 587820025 + 533425216 = 24245^2 + 23096^2 .

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 1121245241 - 2¹⁰ = 1121244217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121245247) 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, 79091 + ... + 92183.

It is an arithmetic number, because the mean of its divisors is an integer number (145048785).

Almost surely, 2^1121245241 is an apocalyptic number.

It is an amenable number.

1121245241 is a deficient number, since it is larger than the sum of its proper divisors (39145039).

1121245241 is a wasteful number, since it uses less digits than its factorization.

1121245241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16075.

The product of its digits is 640, while the sum is 23.

The square root of 1121245241 is about 33485.0002389129. Note that the first 3 decimals coincide. The cubic root of 1121245241 is about 1038.8835532103.

Adding to 1121245241 its reverse (1425421211), we get a palindrome (2546666452).

The spelling of 1121245241 in words is "one billion, one hundred twenty-one million, two hundred forty-five thousand, two hundred forty-one".