103831432 has 8 divisors (see below), whose sum is σ = 194683950. Its totient is φ = 51915712.

The previous prime is 103831417. The next prime is 103831433. The reversal of 103831432 is 234138301.

It can be written as a sum of positive squares in only one way, i.e., 69655716 + 34175716 = 8346^2 + 5846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 103831397 and 103831406.

It is not an unprimeable number, because it can be changed into a prime (103831433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6489457 + ... + 6489472.

Almost surely, 2^103831432 is an apocalyptic number.

It is an amenable number.

103831432 is a deficient number, since it is larger than the sum of its proper divisors (90852518).

103831432 is a wasteful number, since it uses less digits than its factorization.

103831432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12978935 (or 12978931 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 103831432 is about 10189.7709493393. The cubic root of 103831432 is about 470.0127233616.

Adding to 103831432 its reverse (234138301), we get a palindrome (337969733).

The spelling of 103831432 in words is "one hundred three million, eight hundred thirty-one thousand, four hundred thirty-two".