1150545257 has 2 divisors, whose sum is σ = 1150545258. Its totient is φ = 1150545256.

The previous prime is 1150545251. The next prime is 1150545259. The reversal of 1150545257 is 7525450511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1064129641 + 86415616 = 32621^2 + 9296^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150545257 - 2⁸ = 1150545001 is a prime.

Together with 1150545259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1150545251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575272628 + 575272629.

It is an arithmetic number, because the mean of its divisors is an integer number (575272629).

Almost surely, 2^1150545257 is an apocalyptic number.

It is an amenable number.

1150545257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150545257 is an equidigital number, since it uses as much as digits as its factorization.

1150545257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35000, while the sum is 35.

The square root of 1150545257 is about 33919.6883387805. The cubic root of 1150545257 is about 1047.8551096358.

Adding to 1150545257 its reverse (7525450511), we get a palindrome (8675995768).

The spelling of 1150545257 in words is "one billion, one hundred fifty million, five hundred forty-five thousand, two hundred fifty-seven".