138373419 has 4 divisors (see below), whose sum is σ = 184497896. Its totient is φ = 92248944.

The previous prime is 138373399. The next prime is 138373427. The reversal of 138373419 is 914373831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 138373419 - 2⁸ = 138373163 is a prime.

It is a super-2 number, since 2×138373419² = 38294406171499122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138373439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23062234 + ... + 23062239.

It is an arithmetic number, because the mean of its divisors is an integer number (46124474).

Almost surely, 2^138373419 is an apocalyptic number.

138373419 is a deficient number, since it is larger than the sum of its proper divisors (46124477).

138373419 is an equidigital number, since it uses as much as digits as its factorization.

138373419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46124476.

The product of its digits is 54432, while the sum is 39.

The square root of 138373419 is about 11763.2231552411. The cubic root of 138373419 is about 517.2306161740.

The spelling of 138373419 in words is "one hundred thirty-eight million, three hundred seventy-three thousand, four hundred nineteen".