138429343 has 8 divisors (see below), whose sum is σ = 149903936. Its totient is φ = 127072800.

The previous prime is 138429337. The next prime is 138429359. The reversal of 138429343 is 343924831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138429343 - 2⁹ = 138428831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138420343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27063 + ... + 31768.

It is an arithmetic number, because the mean of its divisors is an integer number (18737992).

Almost surely, 2^138429343 is an apocalyptic number.

138429343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138429343 is a deficient number, since it is larger than the sum of its proper divisors (11474593).

138429343 is a wasteful number, since it uses less digits than its factorization.

138429343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59025.

The product of its digits is 62208, while the sum is 37.

The square root of 138429343 is about 11765.5999847012. The cubic root of 138429343 is about 517.3002868504.

The spelling of 138429343 in words is "one hundred thirty-eight million, four hundred twenty-nine thousand, three hundred forty-three".