104831109 has 6 divisors (see below), whose sum is σ = 151422726. Its totient is φ = 69887400.

The previous prime is 104831087. The next prime is 104831131. The reversal of 104831109 is 901138401.

It is an interprime number because it is at equal distance from previous prime (104831087) and next prime (104831131).

It can be written as a sum of positive squares in only one way, i.e., 101304225 + 3526884 = 10065^2 + 1878^2 .

It is not a de Polignac number, because 104831109 - 2¹⁹ = 104306821 is a prime.

It is a super-2 number, since 2×104831109² = 21979122828339762, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104831149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5823942 + ... + 5823959.

It is an arithmetic number, because the mean of its divisors is an integer number (25237121).

Almost surely, 2^104831109 is an apocalyptic number.

It is an amenable number.

104831109 is a deficient number, since it is larger than the sum of its proper divisors (46591617).

104831109 is a wasteful number, since it uses less digits than its factorization.

104831109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11647907 (or 11647904 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 104831109 is about 10238.7064124332. The cubic root of 104831109 is about 471.5163175119.

The spelling of 104831109 in words is "one hundred four million, eight hundred thirty-one thousand, one hundred nine".