103135639 has 4 divisors (see below), whose sum is σ = 103175856. Its totient is φ = 103095424.

The previous prime is 103135631. The next prime is 103135661. The reversal of 103135639 is 936531301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936531301 = 269 ⋅3481529.

It is a cyclic number.

It is not a de Polignac number, because 103135639 - 2³ = 103135631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103135639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103135631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15979 + ... + 21484.

It is an arithmetic number, because the mean of its divisors is an integer number (25793964).

Almost surely, 2^103135639 is an apocalyptic number.

103135639 is a deficient number, since it is larger than the sum of its proper divisors (40217).

103135639 is an equidigital number, since it uses as much as digits as its factorization.

103135639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40216.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 103135639 is about 10155.5718204343. The cubic root of 103135639 is about 468.9604896681.

The spelling of 103135639 in words is "one hundred three million, one hundred thirty-five thousand, six hundred thirty-nine".