138674201 has 8 divisors (see below), whose sum is σ = 143613000. Its totient is φ = 133745920.

The previous prime is 138674197. The next prime is 138674203. The reversal of 138674201 is 102476831.

It can be written as a sum of positive squares in 4 ways, for example, as 33918976 + 104755225 = 5824^2 + 10235^2 .

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 138674201 - 2² = 138674197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138674203) 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, 32225 + ... + 36273.

It is an arithmetic number, because the mean of its divisors is an integer number (17951625).

Almost surely, 2^138674201 is an apocalyptic number.

It is an amenable number.

138674201 is a deficient number, since it is larger than the sum of its proper divisors (4938799).

138674201 is a wasteful number, since it uses less digits than its factorization.

138674201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5259.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 138674201 is about 11776.0010614809. The cubic root of 138674201 is about 517.6051126462.

The spelling of 138674201 in words is "one hundred thirty-eight million, six hundred seventy-four thousand, two hundred one".