1238268983 has 4 divisors (see below), whose sum is σ = 1415164560. Its totient is φ = 1061373408.

The previous prime is 1238268953. The next prime is 1238269061. The reversal of 1238268983 is 3898628321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1238268983 - 2²⁶ = 1171160119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238268953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88447778 + ... + 88447791.

It is an arithmetic number, because the mean of its divisors is an integer number (353791140).

Almost surely, 2^1238268983 is an apocalyptic number.

1238268983 is a deficient number, since it is larger than the sum of its proper divisors (176895577).

1238268983 is an equidigital number, since it uses as much as digits as its factorization.

1238268983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176895576.

The product of its digits is 995328, while the sum is 50.

The square root of 1238268983 is about 35189.0463496810. The cubic root of 1238268983 is about 1073.8369199749.

The spelling of 1238268983 in words is "one billion, two hundred thirty-eight million, two hundred sixty-eight thousand, nine hundred eighty-three".