123725387 has 2 divisors, whose sum is σ = 123725388. Its totient is φ = 123725386.

The previous prime is 123725377. The next prime is 123725389. The reversal of 123725387 is 783527321.

It is a strong prime.

It is an emirp because it is prime and its reverse (783527321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123725387 - 2¹⁸ = 123463243 is a prime.

Together with 123725389, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123725387.

It is not a weakly prime, because it can be changed into another prime (123725389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61862693 + 61862694.

It is an arithmetic number, because the mean of its divisors is an integer number (61862694).

Almost surely, 2^123725387 is an apocalyptic number.

123725387 is a deficient number, since it is larger than the sum of its proper divisors (1).

123725387 is an equidigital number, since it uses as much as digits as its factorization.

123725387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 123725387 is about 11123.1914035496. The cubic root of 123725387 is about 498.2947065606.

The spelling of 123725387 in words is "one hundred twenty-three million, seven hundred twenty-five thousand, three hundred eighty-seven".