100431248 has 20 divisors (see below), whose sum is σ = 203046528. Its totient is φ = 48032160.

The previous prime is 100431229. The next prime is 100431251. The reversal of 100431248 is 842134001.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136088 + ... + 136823.

Almost surely, 2^100431248 is an apocalyptic number.

It is an amenable number.

100431248 is an abundant number, since it is smaller than the sum of its proper divisors (102615280).

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

100431248 is a wasteful number, since it uses less digits than its factorization.

100431248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272942 (or 272936 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 100431248 is about 10021.5392031364. The cubic root of 100431248 is about 464.8251518211.

Adding to 100431248 its reverse (842134001), we get a palindrome (942565249).

The spelling of 100431248 in words is "one hundred million, four hundred thirty-one thousand, two hundred forty-eight".