138436192 has 12 divisors (see below), whose sum is σ = 272546316. Its totient is φ = 69218080.

The previous prime is 138436189. The next prime is 138436201. The reversal of 138436192 is 291634831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2163034 + ... + 2163097.

It is an arithmetic number, because the mean of its divisors is an integer number (22712193).

Almost surely, 2^138436192 is an apocalyptic number.

It is an amenable number.

138436192 is a deficient number, since it is larger than the sum of its proper divisors (134110124).

138436192 is an equidigital number, since it uses as much as digits as its factorization.

138436192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326141 (or 4326133 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 138436192 is about 11765.8910414809. The cubic root of 138436192 is about 517.3088181130.

The spelling of 138436192 in words is "one hundred thirty-eight million, four hundred thirty-six thousand, one hundred ninety-two".