100431332 has 6 divisors (see below), whose sum is σ = 175754838. Its totient is φ = 50215664.

The previous prime is 100431313. The next prime is 100431337. The reversal of 100431332 is 233134001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 97140736 + 3290596 = 9856^2 + 1814^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100431332.

It is not an unprimeable number, because it can be changed into a prime (100431337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12553913 + ... + 12553920.

It is an arithmetic number, because the mean of its divisors is an integer number (29292473).

Almost surely, 2^100431332 is an apocalyptic number.

It is an amenable number.

100431332 is a deficient number, since it is larger than the sum of its proper divisors (75323506).

100431332 is a wasteful number, since it uses less digits than its factorization.

100431332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25107837 (or 25107835 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 100431332 is about 10021.5433941085. The cubic root of 100431332 is about 464.8252814133.

Adding to 100431332 its reverse (233134001), we get a palindrome (333565333).

The spelling of 100431332 in words is "one hundred million, four hundred thirty-one thousand, three hundred thirty-two".