138029733 has 12 divisors (see below), whose sum is σ = 202756320. Its totient is φ = 90459816.

The previous prime is 138029719. The next prime is 138029743. The reversal of 138029733 is 337920831.

It is a happy number.

It is not a de Polignac number, because 138029733 - 2²¹ = 135932581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138029713) 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, 129441 + ... + 130502.

It is an arithmetic number, because the mean of its divisors is an integer number (16896360).

Almost surely, 2^138029733 is an apocalyptic number.

It is an amenable number.

138029733 is a deficient number, since it is larger than the sum of its proper divisors (64726587).

138029733 is a wasteful number, since it uses less digits than its factorization.

138029733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260008 (or 260005 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 138029733 is about 11748.6055768334. The cubic root of 138029733 is about 516.8020360290.

It can be divided in two parts, 1380 and 29733, that added together give a palindrome (31113).

The spelling of 138029733 in words is "one hundred thirty-eight million, twenty-nine thousand, seven hundred thirty-three".