103900591 has 8 divisors (see below), whose sum is σ = 112157280. Its totient is φ = 95955552.

The previous prime is 103900579. The next prime is 103900609. The reversal of 103900591 is 195009301.

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 103900591 - 2⁹ = 103900079 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 (103900541) 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, 77220 + ... + 78553.

It is an arithmetic number, because the mean of its divisors is an integer number (14019660).

Almost surely, 2^103900591 is an apocalyptic number.

103900591 is a deficient number, since it is larger than the sum of its proper divisors (8256689).

103900591 is a wasteful number, since it uses less digits than its factorization.

103900591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155825.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 103900591 is about 10193.1639347162. The cubic root of 103900591 is about 470.1170539899.

Adding to 103900591 its reverse (195009301), we get a palindrome (298909892).

The spelling of 103900591 in words is "one hundred three million, nine hundred thousand, five hundred ninety-one".