1157065043 has 2 divisors, whose sum is σ = 1157065044. Its totient is φ = 1157065042.

The previous prime is 1157065031. The next prime is 1157065079. The reversal of 1157065043 is 3405607511.

It is a weak prime.

It is an emirp because it is prime and its reverse (3405607511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157065043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157065093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578532521 + 578532522.

It is an arithmetic number, because the mean of its divisors is an integer number (578532522).

Almost surely, 2^1157065043 is an apocalyptic number.

1157065043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157065043 is an equidigital number, since it uses as much as digits as its factorization.

1157065043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1157065043 is about 34015.6587912097. The cubic root of 1157065043 is about 1049.8306735268.

The spelling of 1157065043 in words is "one billion, one hundred fifty-seven million, sixty-five thousand, forty-three".