138329025 has 24 divisors (see below), whose sum is σ = 240743520. Its totient is φ = 69891840.

The previous prime is 138329011. The next prime is 138329027. The reversal of 138329025 is 520923831.

It is not a de Polignac number, because 138329025 - 2⁶ = 138328961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138329027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47112 + ... + 49961.

It is an arithmetic number, because the mean of its divisors is an integer number (10030980).

Almost surely, 2^138329025 is an apocalyptic number.

138329025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138329025 is a deficient number, since it is larger than the sum of its proper divisors (102414495).

138329025 is a wasteful number, since it uses less digits than its factorization.

138329025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97105 (or 97100 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 138329025 is about 11761.3360210479. The cubic root of 138329025 is about 517.1752963200.

The spelling of 138329025 in words is "one hundred thirty-eight million, three hundred twenty-nine thousand, twenty-five".