138087419 has 8 divisors (see below), whose sum is σ = 141153840. Its totient is φ = 135038176.

The previous prime is 138087407. The next prime is 138087427. The reversal of 138087419 is 914780831.

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 138087419 - 2²⁰ = 137038843 is a prime.

It is a super-2 number, since 2×138087419² = 38136270572163122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138086419) 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, 12692 + ... + 20910.

It is an arithmetic number, because the mean of its divisors is an integer number (17644230).

Almost surely, 2^138087419 is an apocalyptic number.

138087419 is a deficient number, since it is larger than the sum of its proper divisors (3066421).

138087419 is an equidigital number, since it uses as much as digits as its factorization.

138087419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8589.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 138087419 is about 11751.0603351357. The cubic root of 138087419 is about 516.8740207371.

The spelling of 138087419 in words is "one hundred thirty-eight million, eighty-seven thousand, four hundred nineteen".