1151165043 has 24 divisors (see below), whose sum is σ = 1907080448. Its totient is φ = 655474032.

The previous prime is 1151165039. The next prime is 1151165087. The reversal of 1151165043 is 3405611511.

1151165043 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 1 + 650 + 4 + 3 = 666.

It is not a de Polignac number, because 1151165043 - 2² = 1151165039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1151164998 and 1151165016.

It is not an unprimeable number, because it can be changed into a prime (1151165003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14455 + ... + 50112.

Almost surely, 2^1151165043 is an apocalyptic number.

1151165043 is a deficient number, since it is larger than the sum of its proper divisors (755915405).

1151165043 is a wasteful number, since it uses less digits than its factorization.

1151165043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64863 (or 64860 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1151165043 is about 33928.8231891411. The cubic root of 1151165043 is about 1048.0432318447.

Adding to 1151165043 its reverse (3405611511), we get a palindrome (4556776554).

The spelling of 1151165043 in words is "one billion, one hundred fifty-one million, one hundred sixty-five thousand, forty-three".