1158165433 has 4 divisors (see below), whose sum is σ = 1158421648. Its totient is φ = 1157909220.

The previous prime is 1158165427. The next prime is 1158165461. The reversal of 1158165433 is 3345618511.

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 1158165433 - 2²⁵ = 1124611001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1158165392 and 1158165401.

It is not an unprimeable number, because it can be changed into a prime (1158160433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121203 + ... + 130408.

It is an arithmetic number, because the mean of its divisors is an integer number (289605412).

Almost surely, 2^1158165433 is an apocalyptic number.

It is an amenable number.

1158165433 is a deficient number, since it is larger than the sum of its proper divisors (256215).

1158165433 is an equidigital number, since it uses as much as digits as its factorization.

1158165433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256214.

The product of its digits is 43200, while the sum is 37.

The square root of 1158165433 is about 34031.8297039698. The cubic root of 1158165433 is about 1050.1633708003.

The spelling of 1158165433 in words is "one billion, one hundred fifty-eight million, one hundred sixty-five thousand, four hundred thirty-three".