1121065237 has 2 divisors, whose sum is σ = 1121065238. Its totient is φ = 1121065236.

The previous prime is 1121065207. The next prime is 1121065247. The reversal of 1121065237 is 7325601211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1082015236 + 39050001 = 32894^2 + 6249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121065237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121065207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560532618 + 560532619.

It is an arithmetic number, because the mean of its divisors is an integer number (560532619).

Almost surely, 2^1121065237 is an apocalyptic number.

It is an amenable number.

1121065237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121065237 is an equidigital number, since it uses as much as digits as its factorization.

1121065237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1121065237 is about 33482.3123006760. The cubic root of 1121065237 is about 1038.8279563328.

Adding to 1121065237 its reverse (7325601211), we get a palindrome (8446666448).

The spelling of 1121065237 in words is "one billion, one hundred twenty-one million, sixty-five thousand, two hundred thirty-seven".