100431552 has 56 divisors (see below), whose sum is σ = 286172656. Its totient is φ = 30901248.

The previous prime is 100431533. The next prime is 100431557. The reversal of 100431552 is 255134001.

It is not an unprimeable number, because it can be changed into a prime (100431557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17623 + ... + 22614.

It is an arithmetic number, because the mean of its divisors is an integer number (5110226).

Almost surely, 2^100431552 is an apocalyptic number.

100431552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100431552 is an abundant number, since it is smaller than the sum of its proper divisors (185741104).

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

100431552 is a wasteful number, since it uses less digits than its factorization.

100431552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40265 (or 40255 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 100431552 is about 10021.5543704557. The cubic root of 100431552 is about 464.8256208209.

Adding to 100431552 its reverse (255134001), we get a palindrome (355565553).

The spelling of 100431552 in words is "one hundred million, four hundred thirty-one thousand, five hundred fifty-two".