138104001 has 48 divisors (see below), whose sum is σ = 243175680. Its totient is φ = 77202720.

The previous prime is 138103969. The next prime is 138104009. The reversal of 138104001 is 100401831.

It is not a de Polignac number, because 138104001 - 2⁵ = 138103969 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138104009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61071 + ... + 63291.

It is an arithmetic number, because the mean of its divisors is an integer number (5066160).

Almost surely, 2^138104001 is an apocalyptic number.

It is an amenable number.

138104001 is a deficient number, since it is larger than the sum of its proper divisors (105071679).

138104001 is a wasteful number, since it uses less digits than its factorization.

138104001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291 (or 2278 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 138104001 is about 11751.7658673069. The cubic root of 138104001 is about 516.8947092305.

Adding to 138104001 its reverse (100401831), we get a palindrome (238505832).

The spelling of 138104001 in words is "one hundred thirty-eight million, one hundred four thousand, one".