138407419 has 6 divisors (see below), whose sum is σ = 145746020. Its totient is φ = 131074236.

The previous prime is 138407407. The next prime is 138407453. The reversal of 138407419 is 914704831.

It is not a de Polignac number, because 138407419 - 2¹⁵ = 138374651 is a prime.

It is a super-2 number, since 2×138407419² = 38313227268483122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138107419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49932 + ... + 52630.

Almost surely, 2^138407419 is an apocalyptic number.

138407419 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

138407419 is a deficient number, since it is larger than the sum of its proper divisors (7338601).

138407419 is an frugal number, since it uses more digits than its factorization.

138407419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 138407419 is about 11764.6682486163. The cubic root of 138407419 is about 517.2729759493.

The spelling of 138407419 in words is "one hundred thirty-eight million, four hundred seven thousand, four hundred nineteen".