123602449 has 2 divisors, whose sum is σ = 123602450. Its totient is φ = 123602448.

The previous prime is 123602447. The next prime is 123602473. The reversal of 123602449 is 944206321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94711824 + 28890625 = 9732^2 + 5375^2 .

It is a cyclic number.

It is not a de Polignac number, because 123602449 - 2¹ = 123602447 is a prime.

Together with 123602447, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 123602449.

It is not a weakly prime, because it can be changed into another prime (123602443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61801224 + 61801225.

It is an arithmetic number, because the mean of its divisors is an integer number (61801225).

Almost surely, 2^123602449 is an apocalyptic number.

It is an amenable number.

123602449 is a deficient number, since it is larger than the sum of its proper divisors (1).

123602449 is an equidigital number, since it uses as much as digits as its factorization.

123602449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 123602449 is about 11117.6638283409. The cubic root of 123602449 is about 498.1296106786.

The spelling of 123602449 in words is "one hundred twenty-three million, six hundred two thousand, four hundred forty-nine".