104137639 has 4 divisors (see below), whose sum is σ = 105564256. Its totient is φ = 102711024.

The previous prime is 104137609. The next prime is 104137667. The reversal of 104137639 is 936731401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936731401 = 73 ⋅12831937.

It is a cyclic number.

It is not a de Polignac number, because 104137639 - 2⁹ = 104137127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104137609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713199 + ... + 713344.

It is an arithmetic number, because the mean of its divisors is an integer number (26391064).

Almost surely, 2^104137639 is an apocalyptic number.

104137639 is a deficient number, since it is larger than the sum of its proper divisors (1426617).

104137639 is an equidigital number, since it uses as much as digits as its factorization.

104137639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426616.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 104137639 is about 10204.7851030779. The cubic root of 104137639 is about 470.4743046519.

The spelling of 104137639 in words is "one hundred four million, one hundred thirty-seven thousand, six hundred thirty-nine".