123902 has 8 divisors (see below), whose sum is σ = 190512. Its totient is φ = 60400.

The previous prime is 123887. The next prime is 123911. The reversal of 123902 is 209321.

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

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674 + ... + 837.

It is an arithmetic number, because the mean of its divisors is an integer number (23814).

2¹²³⁹⁰² is an apocalyptic number.

123902 is a deficient number, since it is larger than the sum of its proper divisors (66610).

123902 is a wasteful number, since it uses less digits than its factorization.

123902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 123902 is about 351.9971590794. The cubic root of 123902 is about 49.8531692366.

The spelling of 123902 in words is "one hundred twenty-three thousand, nine hundred two".