1171257284 has 24 divisors (see below), whose sum is σ = 2082366720. Its totient is φ = 576313056.

The previous prime is 1171257281. The next prime is 1171257331. The reversal of 1171257284 is 4827521711.

It is not an unprimeable number, because it can be changed into a prime (1171257281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418562 + ... + 421350.

It is an arithmetic number, because the mean of its divisors is an integer number (86765280).

Almost surely, 2^1171257284 is an apocalyptic number.

It is an amenable number.

1171257284 is a deficient number, since it is larger than the sum of its proper divisors (911109436).

1171257284 is a wasteful number, since it uses less digits than its factorization.

1171257284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427 (or 4425 counting only the distinct ones).

The product of its digits is 31360, while the sum is 38.

The square root of 1171257284 is about 34223.6363351412. The cubic root of 1171257284 is about 1054.1055539660.

Adding to 1171257284 its reverse (4827521711), we get a palindrome (5998778995).

The spelling of 1171257284 in words is "one billion, one hundred seventy-one million, two hundred fifty-seven thousand, two hundred eighty-four".