381408123 has 8 divisors (see below), whose sum is σ = 510478848. Its totient is φ = 253304744.

The previous prime is 381408121. The next prime is 381408143. The reversal of 381408123 is 321804183.

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 381408123 - 2¹ = 381408121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381408121) 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, 240915 + ... + 242492.

It is an arithmetic number, because the mean of its divisors is an integer number (63809856).

Almost surely, 2^381408123 is an apocalyptic number.

381408123 is a deficient number, since it is larger than the sum of its proper divisors (129070725).

381408123 is a wasteful number, since it uses less digits than its factorization.

381408123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483673.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 381408123 is about 19529.6728851253. The cubic root of 381408123 is about 725.2092130263.

The spelling of 381408123 in words is "three hundred eighty-one million, four hundred eight thousand, one hundred twenty-three".