138419454 has 16 divisors (see below), whose sum is σ = 280971648. Its totient is φ = 45451032.

The previous prime is 138419417. The next prime is 138419467. The reversal of 138419454 is 454914831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171762 + ... + 172565.

It is an arithmetic number, because the mean of its divisors is an integer number (17560728).

Almost surely, 2^138419454 is an apocalyptic number.

138419454 is an abundant number, since it is smaller than the sum of its proper divisors (142552194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138419454 is a wasteful number, since it uses less digits than its factorization.

138419454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344399.

The product of its digits is 69120, while the sum is 39.

The square root of 138419454 is about 11765.1797266340. The cubic root of 138419454 is about 517.2879684015.

The spelling of 138419454 in words is "one hundred thirty-eight million, four hundred nineteen thousand, four hundred fifty-four".