123854421 has 16 divisors (see below), whose sum is σ = 167182400. Its totient is φ = 81554688.

The previous prime is 123854417. The next prime is 123854431. The reversal of 123854421 is 124458321.

It is not a de Polignac number, because 123854421 - 2² = 123854417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123854431) 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, 94845 + ... + 96141.

It is an arithmetic number, because the mean of its divisors is an integer number (10448900).

Almost surely, 2^123854421 is an apocalyptic number.

It is an amenable number.

123854421 is a deficient number, since it is larger than the sum of its proper divisors (43327979).

123854421 is a wasteful number, since it uses less digits than its factorization.

123854421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668.

The product of its digits is 7680, while the sum is 30.

The square root of 123854421 is about 11128.9901159090. The cubic root of 123854421 is about 498.4678712920.

The spelling of 123854421 in words is "one hundred twenty-three million, eight hundred fifty-four thousand, four hundred twenty-one".