138783235 has 16 divisors (see below), whose sum is σ = 171051552. Its totient is φ = 108057600.

The previous prime is 138783157. The next prime is 138783247. The reversal of 138783235 is 532387831.

It is not a de Polignac number, because 138783235 - 2¹⁹ = 138258947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27240 + ... + 31930.

It is an arithmetic number, because the mean of its divisors is an integer number (10690722).

Almost surely, 2^138783235 is an apocalyptic number.

138783235 is a deficient number, since it is larger than the sum of its proper divisors (32268317).

138783235 is an equidigital number, since it uses as much as digits as its factorization.

138783235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4854.

The product of its digits is 120960, while the sum is 40.

The square root of 138783235 is about 11780.6296521026. The cubic root of 138783235 is about 517.7407345346.

The spelling of 138783235 in words is "one hundred thirty-eight million, seven hundred eighty-three thousand, two hundred thirty-five".