1159647841 has 4 divisors (see below), whose sum is σ = 1265070384. Its totient is φ = 1054225300.

The previous prime is 1159647829. The next prime is 1159647847. The reversal of 1159647841 is 1487469511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1159647841 - 2⁹ = 1159647329 is a prime.

It is a super-2 number, since 2×1159647841² = 2689566230271922562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1159647791 and 1159647800.

It is not an unprimeable number, because it can be changed into a prime (1159647847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52711255 + ... + 52711276.

It is an arithmetic number, because the mean of its divisors is an integer number (316267596).

Almost surely, 2^1159647841 is an apocalyptic number.

1159647841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1159647841 is a deficient number, since it is larger than the sum of its proper divisors (105422543).

1159647841 is a wasteful number, since it uses less digits than its factorization.

1159647841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105422542.

The product of its digits is 241920, while the sum is 46.

The square root of 1159647841 is about 34053.6024672868. The cubic root of 1159647841 is about 1050.6112362512.

The spelling of 1159647841 in words is "one billion, one hundred fifty-nine million, six hundred forty-seven thousand, eight hundred forty-one".