1121151757 has 12 divisors (see below), whose sum is σ = 1252550908. Its totient is φ = 1002513600.

The previous prime is 1121151749. The next prime is 1121151793. The reversal of 1121151757 is 7571511211.

It can be written as a sum of positive squares in 2 ways, for example, as 593117316 + 528034441 = 24354^2 + 22979^2 .

It is not a de Polignac number, because 1121151757 - 2³ = 1121151749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121151727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68568 + ... + 83329.

Almost surely, 2^1121151757 is an apocalyptic number.

It is an amenable number.

1121151757 is a deficient number, since it is larger than the sum of its proper divisors (131399151).

1121151757 is a wasteful number, since it uses less digits than its factorization.

1121151757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151980 (or 151969 counting only the distinct ones).

The product of its digits is 2450, while the sum is 31.

The square root of 1121151757 is about 33483.6043012099. The cubic root of 1121151757 is about 1038.8546800475.

Adding to 1121151757 its reverse (7571511211), we get a palindrome (8692662968).

The spelling of 1121151757 in words is "one billion, one hundred twenty-one million, one hundred fifty-one thousand, seven hundred fifty-seven".