1123807158 has 24 divisors (see below), whose sum is σ = 2445112800. Its totient is φ = 373033584.

The previous prime is 1123807141. The next prime is 1123807169. The reversal of 1123807158 is 8517083211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126313 + ... + 134916.

It is an arithmetic number, because the mean of its divisors is an integer number (101879700).

Almost surely, 2^1123807158 is an apocalyptic number.

1123807158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1123807158 is an abundant number, since it is smaller than the sum of its proper divisors (1321305642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123807158 is a wasteful number, since it uses less digits than its factorization.

1123807158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261476 (or 261473 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 1123807158 is about 33523.2331078015. The cubic root of 1123807158 is about 1039.6741946651.

The spelling of 1123807158 in words is "one billion, one hundred twenty-three million, eight hundred seven thousand, one hundred fifty-eight".