123715 has 8 divisors (see below), whose sum is σ = 150480. Its totient is φ = 97632.

The previous prime is 123707. The next prime is 123719. The reversal of 123715 is 517321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123715 - 2³ = 123707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123692 and 123701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432 + ... + 658.

It is an arithmetic number, because the mean of its divisors is an integer number (18810).

2¹²³⁷¹⁵ is an apocalyptic number.

123715 is a deficient number, since it is larger than the sum of its proper divisors (26765).

123715 is a wasteful number, since it uses less digits than its factorization.

123715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341.

The product of its digits is 210, while the sum is 19.

The square root of 123715 is about 351.7314316350. The cubic root of 123715 is about 49.8280761883.

It can be divided in two parts, 123 and 715, that added together give a palindrome (838).

The spelling of 123715 in words is "one hundred twenty-three thousand, seven hundred fifteen".