123815941 has 16 divisors (see below), whose sum is σ = 129604608. Its totient is φ = 118195200.

The previous prime is 123815903. The next prime is 123815987. The reversal of 123815941 is 149518321.

It is a cyclic number.

It is not a de Polignac number, because 123815941 - 2⁹ = 123815429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123815897 and 123815906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123815441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648156 + ... + 648346.

It is an arithmetic number, because the mean of its divisors is an integer number (8100288).

Almost surely, 2^123815941 is an apocalyptic number.

It is an amenable number.

123815941 is a deficient number, since it is larger than the sum of its proper divisors (5788667).

123815941 is a wasteful number, since it uses less digits than its factorization.

123815941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492.

The product of its digits is 8640, while the sum is 34.

The square root of 123815941 is about 11127.2611634670. The cubic root of 123815941 is about 498.4162433934.

The spelling of 123815941 in words is "one hundred twenty-three million, eight hundred fifteen thousand, nine hundred forty-one".