1149043057 has 2 divisors, whose sum is σ = 1149043058. Its totient is φ = 1149043056.

The previous prime is 1149043013. The next prime is 1149043067. The reversal of 1149043057 is 7503409411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829670416 + 319372641 = 28804^2 + 17871^2 .

It is a cyclic number.

It is not a de Polignac number, because 1149043057 - 2¹⁹ = 1148518769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1149043067) 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, 574521528 + 574521529.

It is an arithmetic number, because the mean of its divisors is an integer number (574521529).

Almost surely, 2^1149043057 is an apocalyptic number.

It is an amenable number.

1149043057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149043057 is an equidigital number, since it uses as much as digits as its factorization.

1149043057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1149043057 is about 33897.5376244352. The cubic root of 1149043057 is about 1047.3988698665.

The spelling of 1149043057 in words is "one billion, one hundred forty-nine million, forty-three thousand, fifty-seven".