138214467 has 6 divisors (see below), whose sum is σ = 199643132. Its totient is φ = 92142972.

The previous prime is 138214463. The next prime is 138214469. The reversal of 138214467 is 764412831.

138214467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138214467 - 2² = 138214463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138214463) 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, 7678573 + ... + 7678590.

Almost surely, 2^138214467 is an apocalyptic number.

138214467 is a deficient number, since it is larger than the sum of its proper divisors (61428665).

138214467 is a wasteful number, since it uses less digits than its factorization.

138214467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15357169 (or 15357166 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 138214467 is about 11756.4649023420. The cubic root of 138214467 is about 517.0324896308.

The spelling of 138214467 in words is "one hundred thirty-eight million, two hundred fourteen thousand, four hundred sixty-seven".