123730601 has 4 divisors (see below), whose sum is σ = 124518852. Its totient is φ = 122942352.

The previous prime is 123730597. The next prime is 123730619. The reversal of 123730601 is 106037321.

It is a happy number.

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 55651600 + 68079001 = 7460^2 + 8251^2 .

It is a cyclic number.

It is not a de Polignac number, because 123730601 - 2² = 123730597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123730681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393890 + ... + 394203.

It is an arithmetic number, because the mean of its divisors is an integer number (31129713).

Almost surely, 2^123730601 is an apocalyptic number.

It is an amenable number.

123730601 is a deficient number, since it is larger than the sum of its proper divisors (788251).

123730601 is an equidigital number, since it uses as much as digits as its factorization.

123730601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788250.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 123730601 is about 11123.4257762616. The cubic root of 123730601 is about 498.3017061268.

Adding to 123730601 its reverse (106037321), we get a palindrome (229767922).

The spelling of 123730601 in words is "one hundred twenty-three million, seven hundred thirty thousand, six hundred one".