138375674 has 8 divisors (see below), whose sum is σ = 207838548. Its totient is φ = 69096160.

The previous prime is 138375673. The next prime is 138375683. The reversal of 138375674 is 476573831.

It can be written as a sum of positive squares in 2 ways, for example, as 128981449 + 9394225 = 11357^2 + 3065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (138375673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43937 + ... + 46980.

Almost surely, 2^138375674 is an apocalyptic number.

138375674 is a deficient number, since it is larger than the sum of its proper divisors (69462874).

138375674 is an equidigital number, since it uses as much as digits as its factorization.

138375674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91680.

The product of its digits is 423360, while the sum is 44.

The square root of 138375674 is about 11763.3190044307. The cubic root of 138375674 is about 517.2334258387.

The spelling of 138375674 in words is "one hundred thirty-eight million, three hundred seventy-five thousand, six hundred seventy-four".