123290713 has 12 divisors (see below), whose sum is σ = 154452900. Its totient is φ = 97548192.

The previous prime is 123290701. The next prime is 123290723. The reversal of 123290713 is 317092321.

It can be written as a sum of positive squares in 2 ways, for example, as 59721984 + 63568729 = 7728^2 + 7973^2 .

It is a de Polignac number, because none of the positive numbers 2^k-123290713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123290723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96138 + ... + 97411.

It is an arithmetic number, because the mean of its divisors is an integer number (12871075).

Almost surely, 2^123290713 is an apocalyptic number.

123290713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123290713 is a deficient number, since it is larger than the sum of its proper divisors (31162187).

123290713 is a wasteful number, since it uses less digits than its factorization.

123290713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193576 (or 193569 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 123290713 is about 11103.6351254893. The cubic root of 123290713 is about 497.7104828913.

The spelling of 123290713 in words is "one hundred twenty-three million, two hundred ninety thousand, seven hundred thirteen".