138429675 has 24 divisors (see below), whose sum is σ = 254301680. Its totient is φ = 73828800.

The previous prime is 138429671. The next prime is 138429689. The reversal of 138429675 is 576924831.

It is not a de Polignac number, because 138429675 - 2² = 138429671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 138429675.

It is not an unprimeable number, because it can be changed into a prime (138429671) 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, 101866 + ... + 103215.

Almost surely, 2^138429675 is an apocalyptic number.

138429675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138429675 is a deficient number, since it is larger than the sum of its proper divisors (115872005).

138429675 is a wasteful number, since it uses less digits than its factorization.

138429675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205100 (or 205089 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 138429675 is about 11765.6140936204. The cubic root of 138429675 is about 517.3007004033.

The spelling of 138429675 in words is "one hundred thirty-eight million, four hundred twenty-nine thousand, six hundred seventy-five".