138329032 has 8 divisors (see below), whose sum is σ = 259366950. Its totient is φ = 69164512.

The previous prime is 138329027. The next prime is 138329041. The reversal of 138329032 is 230923831.

It can be written as a sum of positive squares in only one way, i.e., 135349956 + 2979076 = 11634^2 + 1726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 138328985 and 138329003.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8645557 + ... + 8645572.

Almost surely, 2^138329032 is an apocalyptic number.

It is an amenable number.

138329032 is a deficient number, since it is larger than the sum of its proper divisors (121037918).

138329032 is a wasteful number, since it uses less digits than its factorization.

138329032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17291135 (or 17291131 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 138329032 is about 11761.3363186332. The cubic root of 138329032 is about 517.1753050437.

The spelling of 138329032 in words is "one hundred thirty-eight million, three hundred twenty-nine thousand, thirty-two".