123700613 has 4 divisors (see below), whose sum is σ = 123864780. Its totient is φ = 123536448.

The previous prime is 123700597. The next prime is 123700651. The reversal of 123700613 is 316007321.

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 37173409 + 86527204 = 6097^2 + 9302^2 .

It is a cyclic number.

It is not a de Polignac number, because 123700613 - 2⁴ = 123700597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123705613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80948 + ... + 82461.

It is an arithmetic number, because the mean of its divisors is an integer number (30966195).

Almost surely, 2^123700613 is an apocalyptic number.

It is an amenable number.

123700613 is a deficient number, since it is larger than the sum of its proper divisors (164167).

123700613 is an equidigital number, since it uses as much as digits as its factorization.

123700613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164166.

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

The square root of 123700613 is about 11122.0777285541. The cubic root of 123700613 is about 498.2614458656.

Adding to 123700613 its reverse (316007321), we get a palindrome (439707934).

The spelling of 123700613 in words is "one hundred twenty-three million, seven hundred thousand, six hundred thirteen".