1130085257 has 8 divisors (see below), whose sum is σ = 1291738176. Its totient is φ = 968485392.

The previous prime is 1130085221. The next prime is 1130085259. The reversal of 1130085257 is 7525800311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1130085257 - 2¹⁰ = 1130084233 is a prime.

It is a super-3 number, since 3×1130085257³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1130085259) 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 in 7 ways as a sum of consecutive naturals, for example, 57743 + ... + 74795.

It is an arithmetic number, because the mean of its divisors is an integer number (161467272).

Almost surely, 2^1130085257 is an apocalyptic number.

It is an amenable number.

1130085257 is a deficient number, since it is larger than the sum of its proper divisors (161652919).

1130085257 is an equidigital number, since it uses as much as digits as its factorization.

1130085257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26527.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 1130085257 is about 33616.7407254183. The cubic root of 1130085257 is about 1041.6066319349.

Adding to 1130085257 its reverse (7525800311), we get a palindrome (8655885568).

The spelling of 1130085257 in words is "one billion, one hundred thirty million, eighty-five thousand, two hundred fifty-seven".