123869042 has 8 divisors (see below), whose sum is σ = 202694832. Its totient is φ = 56304100.

The previous prime is 123869041. The next prime is 123869047. The reversal of 123869042 is 240968321.

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

It is a junction number, because it is equal to n+sod(n) for n = 123868993 and 123869011.

It is not an unprimeable number, because it can be changed into a prime (123869041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2815184 + ... + 2815227.

It is an arithmetic number, because the mean of its divisors is an integer number (25336854).

Almost surely, 2^123869042 is an apocalyptic number.

123869042 is a deficient number, since it is larger than the sum of its proper divisors (78825790).

123869042 is a wasteful number, since it uses less digits than its factorization.

123869042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630424.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 123869042 is about 11129.6469845184. The cubic root of 123869042 is about 498.4874852116.

The spelling of 123869042 in words is "one hundred twenty-three million, eight hundred sixty-nine thousand, forty-two".