138362185 has 8 divisors (see below), whose sum is σ = 178806600. Its totient is φ = 102175104.

The previous prime is 138362183. The next prime is 138362209. The reversal of 138362185 is 581263831.

It can be written as a sum of positive squares in 4 ways, for example, as 698896 + 137663289 = 836^2 + 11733^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 138362185 - 2¹ = 138362183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138362183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064260 + ... + 1064389.

It is an arithmetic number, because the mean of its divisors is an integer number (22350825).

Almost surely, 2^138362185 is an apocalyptic number.

It is an amenable number.

138362185 is a deficient number, since it is larger than the sum of its proper divisors (40444415).

138362185 is a wasteful number, since it uses less digits than its factorization.

138362185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128667.

The product of its digits is 34560, while the sum is 37.

The square root of 138362185 is about 11762.7456403682. The cubic root of 138362185 is about 517.2166184809.

The spelling of 138362185 in words is "one hundred thirty-eight million, three hundred sixty-two thousand, one hundred eighty-five".