1151422241 has 2 divisors, whose sum is σ = 1151422242. Its totient is φ = 1151422240.

The previous prime is 1151422193. The next prime is 1151422253. The reversal of 1151422241 is 1422241511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 751582225 + 399840016 = 27415^2 + 19996^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151422241 - 2¹⁰ = 1151421217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1151472241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575711120 + 575711121.

It is an arithmetic number, because the mean of its divisors is an integer number (575711121).

Almost surely, 2^1151422241 is an apocalyptic number.

It is an amenable number.

1151422241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151422241 is an equidigital number, since it uses as much as digits as its factorization.

1151422241 is an evil number, because the sum of its binary digits is even.

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

The square root of 1151422241 is about 33932.6132356469. The cubic root of 1151422241 is about 1048.1212787336.

Adding to 1151422241 its reverse (1422241511), we get a palindrome (2573663752).

The spelling of 1151422241 in words is "one billion, one hundred fifty-one million, four hundred twenty-two thousand, two hundred forty-one".