1157071547 has 2 divisors, whose sum is σ = 1157071548. Its totient is φ = 1157071546.

The previous prime is 1157071529. The next prime is 1157071549. The reversal of 1157071547 is 7451707511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1157071547 - 2¹² = 1157067451 is a prime.

Together with 1157071549, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1157071547.

It is not a weakly prime, because it can be changed into another prime (1157071549) 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, 578535773 + 578535774.

It is an arithmetic number, because the mean of its divisors is an integer number (578535774).

Almost surely, 2^1157071547 is an apocalyptic number.

1157071547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157071547 is an equidigital number, since it uses as much as digits as its factorization.

1157071547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34300, while the sum is 38.

The square root of 1157071547 is about 34015.7543941039. The cubic root of 1157071547 is about 1049.8326405974.

The spelling of 1157071547 in words is "one billion, one hundred fifty-seven million, seventy-one thousand, five hundred forty-seven".