1123263158 has 8 divisors (see below), whose sum is σ = 1685984328. Its totient is φ = 561268384.

The previous prime is 1123263139. The next prime is 1123263173. The reversal of 1123263158 is 8513623211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177716 + ... + 183927.

It is an arithmetic number, because the mean of its divisors is an integer number (210748041).

Almost surely, 2^1123263158 is an apocalyptic number.

1123263158 is a deficient number, since it is larger than the sum of its proper divisors (562721170).

1123263158 is a wasteful number, since it uses less digits than its factorization.

1123263158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363198.

The product of its digits is 8640, while the sum is 32.

The square root of 1123263158 is about 33515.1183497836. The cubic root of 1123263158 is about 1039.5064096370.

Adding to 1123263158 its reverse (8513623211), we get a palindrome (9636886369).

The spelling of 1123263158 in words is "one billion, one hundred twenty-three million, two hundred sixty-three thousand, one hundred fifty-eight".