123225839 has 4 divisors (see below), whose sum is σ = 134428200. Its totient is φ = 112023480.

The previous prime is 123225833. The next prime is 123225853. The reversal of 123225839 is 938522321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938522321 = 11 ⋅85320211.

It is a cyclic number.

It is not a de Polignac number, because 123225839 - 2¹² = 123221743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123225799 and 123225808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123225833) 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, 5601164 + ... + 5601185.

It is an arithmetic number, because the mean of its divisors is an integer number (33607050).

Almost surely, 2^123225839 is an apocalyptic number.

123225839 is a deficient number, since it is larger than the sum of its proper divisors (11202361).

123225839 is a wasteful number, since it uses less digits than its factorization.

123225839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11202360.

The product of its digits is 25920, while the sum is 35.

The square root of 123225839 is about 11100.7134455403. The cubic root of 123225839 is about 497.6231712737.

The spelling of 123225839 in words is "one hundred twenty-three million, two hundred twenty-five thousand, eight hundred thirty-nine".