13657123 has 2 divisors, whose sum is σ = 13657124. Its totient is φ = 13657122.

The previous prime is 13657117. The next prime is 13657151. The reversal of 13657123 is 32175631.

13657123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13657151) can be obtained adding 13657123 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13657123 - 2²¹ = 11559971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13657091 and 13657100.

It is not a weakly prime, because it can be changed into another prime (13657153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6828561 + 6828562.

It is an arithmetic number, because the mean of its divisors is an integer number (6828562).

Almost surely, 2^13657123 is an apocalyptic number.

13657123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13657123 is an equidigital number, since it uses as much as digits as its factorization.

13657123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 13657123 is about 3695.5544915479. The cubic root of 13657123 is about 239.0303644246.

The spelling of 13657123 in words is "thirteen million, six hundred fifty-seven thousand, one hundred twenty-three".