138207350 has 12 divisors (see below), whose sum is σ = 257065764. Its totient is φ = 55282920.

The previous prime is 138207343. The next prime is 138207373. The reversal of 138207350 is 53702831.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1382024 + ... + 1382123.

It is an arithmetic number, because the mean of its divisors is an integer number (21422147).

Almost surely, 2^138207350 is an apocalyptic number.

138207350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138207350 is a deficient number, since it is larger than the sum of its proper divisors (118858414).

138207350 is a wasteful number, since it uses less digits than its factorization.

138207350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764159 (or 2764154 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 138207350 is about 11756.1622139200. The cubic root of 138207350 is about 517.0236150572.

The spelling of 138207350 in words is "one hundred thirty-eight million, two hundred seven thousand, three hundred fifty".