1158620323 has 32 divisors (see below), whose sum is σ = 1425715200. Its totient is φ = 919571616.

The previous prime is 1158620311. The next prime is 1158620341. The reversal of 1158620323 is 3230268511.

It is a cyclic number.

It is not a de Polignac number, because 1158620323 - 2⁵ = 1158620291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1158620123) 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 31 ways as a sum of consecutive naturals, for example, 1136508 + ... + 1137526.

It is an arithmetic number, because the mean of its divisors is an integer number (44553600).

Almost surely, 2^1158620323 is an apocalyptic number.

1158620323 is a deficient number, since it is larger than the sum of its proper divisors (267094877).

1158620323 is a wasteful number, since it uses less digits than its factorization.

1158620323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1158620323 is about 34038.5123499838. The cubic root of 1158620323 is about 1050.3008428957.

Adding to 1158620323 its reverse (3230268511), we get a palindrome (4388888834).

The spelling of 1158620323 in words is "one billion, one hundred fifty-eight million, six hundred twenty thousand, three hundred twenty-three".