1152911257 has 2 divisors, whose sum is σ = 1152911258. Its totient is φ = 1152911256.

The previous prime is 1152911237. The next prime is 1152911273. The reversal of 1152911257 is 7521192511.

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., 1112155801 + 40755456 = 33349^2 + 6384^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152911257 - 2⁷ = 1152911129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1152911237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576455628 + 576455629.

It is an arithmetic number, because the mean of its divisors is an integer number (576455629).

Almost surely, 2^1152911257 is an apocalyptic number.

It is an amenable number.

1152911257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152911257 is an equidigital number, since it uses as much as digits as its factorization.

1152911257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 34.

The square root of 1152911257 is about 33954.5469267372. The cubic root of 1152911257 is about 1048.5728932761.

The spelling of 1152911257 in words is "one billion, one hundred fifty-two million, nine hundred eleven thousand, two hundred fifty-seven".