138674133 has 24 divisors (see below), whose sum is σ = 222469440. Its totient is φ = 85335120.

The previous prime is 138674119. The next prime is 138674171. The reversal of 138674133 is 331476831.

It is not a de Polignac number, because 138674133 - 2⁵ = 138674101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138672133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10633 + ... + 19758.

It is an arithmetic number, because the mean of its divisors is an integer number (9269560).

Almost surely, 2^138674133 is an apocalyptic number.

138674133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

138674133 is a deficient number, since it is larger than the sum of its proper divisors (83795307).

138674133 is a wasteful number, since it uses less digits than its factorization.

138674133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30426 (or 30407 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 138674133 is about 11775.9981742526. The cubic root of 138674133 is about 517.6050280422.

The spelling of 138674133 in words is "one hundred thirty-eight million, six hundred seventy-four thousand, one hundred thirty-three".