138477267 has 12 divisors (see below), whose sum is σ = 200600400. Its totient is φ = 92051568.

The previous prime is 138477211. The next prime is 138477289. The reversal of 138477267 is 762774831.

138477267 is a `hidden beast` number, since 1 + 384 + 7 + 7 + 267 = 666.

138477267 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 138477267 - 2⁶ = 138477203 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (138477067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18903 + ... + 25184.

It is an arithmetic number, because the mean of its divisors is an integer number (16716700).

Almost surely, 2^138477267 is an apocalyptic number.

138477267 is a deficient number, since it is larger than the sum of its proper divisors (62123133).

138477267 is a wasteful number, since it uses less digits than its factorization.

138477267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44442 (or 44439 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 138477267 is about 11767.6364236834. The cubic root of 138477267 is about 517.3599761188.

The spelling of 138477267 in words is "one hundred thirty-eight million, four hundred seventy-seven thousand, two hundred sixty-seven".