1141257647 has 2 divisors, whose sum is σ = 1141257648. Its totient is φ = 1141257646.

The previous prime is 1141257641. The next prime is 1141257683. The reversal of 1141257647 is 7467521411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141257647 is a prime.

It is a super-3 number, since 3×1141257647³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1141257647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1141257641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570628823 + 570628824.

It is an arithmetic number, because the mean of its divisors is an integer number (570628824).

Almost surely, 2^1141257647 is an apocalyptic number.

1141257647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141257647 is an equidigital number, since it uses as much as digits as its factorization.

1141257647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 1141257647 is about 33782.5050432913. The cubic root of 1141257647 is about 1045.0279357321.

The spelling of 1141257647 in words is "one billion, one hundred forty-one million, two hundred fifty-seven thousand, six hundred forty-seven".