103831398 has 48 divisors (see below), whose sum is σ = 252070416. Its totient is φ = 30611520.

The previous prime is 103831367. The next prime is 103831417. The reversal of 103831398 is 893138301.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 240 + ... + 14412.

It is an arithmetic number, because the mean of its divisors is an integer number (5251467).

Almost surely, 2^103831398 is an apocalyptic number.

103831398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103831398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126035208).

103831398 is an abundant number, since it is smaller than the sum of its proper divisors (148239018).

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

103831398 is a wasteful number, since it uses less digits than its factorization.

103831398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14229 (or 14226 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 103831398 is about 10189.7692809994. The cubic root of 103831398 is about 470.0126720591.

Adding to 103831398 its reverse (893138301), we get a palindrome (996969699).

It can be divided in two parts, 10383 and 1398, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 103831398 in words is "one hundred three million, eight hundred thirty-one thousand, three hundred ninety-eight".