123834449 has 4 divisors (see below), whose sum is σ = 127181364. Its totient is φ = 120487536.

The previous prime is 123834407. The next prime is 123834463. The reversal of 123834449 is 944438321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68227600 + 55606849 = 8260^2 + 7457^2 .

It is a cyclic number.

It is not a de Polignac number, because 123834449 - 2²⁴ = 107057233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123834479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673402 + ... + 1673475.

It is an arithmetic number, because the mean of its divisors is an integer number (31795341).

Almost surely, 2^123834449 is an apocalyptic number.

It is an amenable number.

123834449 is a deficient number, since it is larger than the sum of its proper divisors (3346915).

123834449 is an equidigital number, since it uses as much as digits as its factorization.

123834449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346914.

The product of its digits is 82944, while the sum is 38.

The square root of 123834449 is about 11128.0927835816. The cubic root of 123834449 is about 498.4410765669.

The spelling of 123834449 in words is "one hundred twenty-three million, eight hundred thirty-four thousand, four hundred forty-nine".