138953675 has 36 divisors (see below), whose sum is σ = 200991600. Its totient is φ = 93346560.

The previous prime is 138953671. The next prime is 138953677. The reversal of 138953675 is 576359831.

It is not a de Polignac number, because 138953675 - 2² = 138953671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138953671) 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 35 ways as a sum of consecutive naturals, for example, 932501 + ... + 932649.

It is an arithmetic number, because the mean of its divisors is an integer number (5583100).

Almost surely, 2^138953675 is an apocalyptic number.

138953675 is a deficient number, since it is larger than the sum of its proper divisors (62037925).

138953675 is an equidigital number, since it uses as much as digits as its factorization.

138953675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 234 counting only the distinct ones).

The product of its digits is 680400, while the sum is 47.

The square root of 138953675 is about 11787.8613412273. The cubic root of 138953675 is about 517.9525940129.

The spelling of 138953675 in words is "one hundred thirty-eight million, nine hundred fifty-three thousand, six hundred seventy-five".