123799601 has 2 divisors, whose sum is σ = 123799602. Its totient is φ = 123799600.

The previous prime is 123799597. The next prime is 123799603. The reversal of 123799601 is 106997321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104448400 + 19351201 = 10220^2 + 4399^2 .

It is an emirp because it is prime and its reverse (106997321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123799601 - 2² = 123799597 is a prime.

Together with 123799603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123799603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61899800 + 61899801.

It is an arithmetic number, because the mean of its divisors is an integer number (61899801).

Almost surely, 2^123799601 is an apocalyptic number.

It is an amenable number.

123799601 is a deficient number, since it is larger than the sum of its proper divisors (1).

123799601 is an equidigital number, since it uses as much as digits as its factorization.

123799601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 123799601 is about 11126.5269064520. The cubic root of 123799601 is about 498.3943170845.

The spelling of 123799601 in words is "one hundred twenty-three million, seven hundred ninety-nine thousand, six hundred one".