123049 has 2 divisors, whose sum is σ = 123050. Its totient is φ = 123048.

The previous prime is 123031. The next prime is 123059. The reversal of 123049 is 940321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105625 + 17424 = 325^2 + 132^2 .

It is a cyclic number.

It is not a de Polignac number, because 123049 - 2⁵ = 123017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61524 + 61525.

It is an arithmetic number, because the mean of its divisors is an integer number (61525).

2¹²³⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

123049 is a deficient number, since it is larger than the sum of its proper divisors (1).

123049 is an equidigital number, since it uses as much as digits as its factorization.

123049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 123049 is about 350.7834089577. The cubic root of 123049 is about 49.7385014207.

The spelling of 123049 in words is "one hundred twenty-three thousand, forty-nine".