381498123 has 16 divisors (see below), whose sum is σ = 518109696. Its totient is φ = 249641280.

The previous prime is 381498097. The next prime is 381498127. The reversal of 381498123 is 321894183.

It is not a de Polignac number, because 381498123 - 2²² = 377303819 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (381498127) 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, 45786 + ... + 53472.

It is an arithmetic number, because the mean of its divisors is an integer number (32381856).

Almost surely, 2^381498123 is an apocalyptic number.

381498123 is a deficient number, since it is larger than the sum of its proper divisors (136611573).

381498123 is a wasteful number, since it uses less digits than its factorization.

381498123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7994.

The product of its digits is 41472, while the sum is 39.

The square root of 381498123 is about 19531.9769352721. The cubic root of 381498123 is about 725.2662505251.

The spelling of 381498123 in words is "three hundred eighty-one million, four hundred ninety-eight thousand, one hundred twenty-three".