138582235 has 16 divisors (see below), whose sum is σ = 182246400. Its totient is φ = 100326240.

The previous prime is 138582233. The next prime is 138582239. The reversal of 138582235 is 532285831.

It is not a de Polignac number, because 138582235 - 2¹ = 138582233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138582194 and 138582203.

It is not an unprimeable number, because it can be changed into a prime (138582233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6616 + ... + 17914.

It is an arithmetic number, because the mean of its divisors is an integer number (11390400).

Almost surely, 2^138582235 is an apocalyptic number.

138582235 is a deficient number, since it is larger than the sum of its proper divisors (43664165).

138582235 is a wasteful number, since it uses less digits than its factorization.

138582235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538.

The product of its digits is 57600, while the sum is 37.

The square root of 138582235 is about 11772.0956078347. The cubic root of 138582235 is about 517.4906655026.

The spelling of 138582235 in words is "one hundred thirty-eight million, five hundred eighty-two thousand, two hundred thirty-five".