138700104 has 32 divisors (see below), whose sum is σ = 347120640. Its totient is φ = 46184000.

The previous prime is 138700103. The next prime is 138700157. The reversal of 138700104 is 401007831.

It is a super-2 number, since 2×138700104² = 38475437699221632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (138700103) 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, 25114 + ... + 30134.

It is an arithmetic number, because the mean of its divisors is an integer number (10847520).

Almost surely, 2^138700104 is an apocalyptic number.

It is an amenable number.

138700104 is an abundant number, since it is smaller than the sum of its proper divisors (208420536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138700104 is a wasteful number, since it uses less digits than its factorization.

138700104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181 (or 6177 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 138700104 is about 11777.1008316988. The cubic root of 138700104 is about 517.6373385166.

Adding to 138700104 its reverse (401007831), we get a palindrome (539707935).

The spelling of 138700104 in words is "one hundred thirty-eight million, seven hundred thousand, one hundred four".