123707449 has 2 divisors, whose sum is σ = 123707450. Its totient is φ = 123707448.

The previous prime is 123707447. The next prime is 123707471. The reversal of 123707449 is 944707321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105431824 + 18275625 = 10268^2 + 4275^2 .

It is a cyclic number.

It is not a de Polignac number, because 123707449 - 2¹ = 123707447 is a prime.

Together with 123707447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (123707447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61853724 + 61853725.

It is an arithmetic number, because the mean of its divisors is an integer number (61853725).

Almost surely, 2^123707449 is an apocalyptic number.

It is an amenable number.

123707449 is a deficient number, since it is larger than the sum of its proper divisors (1).

123707449 is an equidigital number, since it uses as much as digits as its factorization.

123707449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 123707449 is about 11122.3850409883. The cubic root of 123707449 is about 498.2706240807.

The spelling of 123707449 in words is "one hundred twenty-three million, seven hundred seven thousand, four hundred forty-nine".