100431525 has 12 divisors (see below), whose sum is σ = 166046912. Its totient is φ = 53563440.

The previous prime is 100431521. The next prime is 100431533. The reversal of 100431525 is 525134001.

It is not a de Polignac number, because 100431525 - 2² = 100431521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100431521) 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 in 11 ways as a sum of consecutive naturals, for example, 669469 + ... + 669618.

Almost surely, 2^100431525 is an apocalyptic number.

100431525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100431525 is a deficient number, since it is larger than the sum of its proper divisors (65615387).

100431525 is a wasteful number, since it uses less digits than its factorization.

100431525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339100 (or 1339095 counting only the distinct ones).

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

The square root of 100431525 is about 10021.5530233592. The cubic root of 100431525 is about 464.8255791664.

Adding to 100431525 its reverse (525134001), we get a palindrome (625565526).

The spelling of 100431525 in words is "one hundred million, four hundred thirty-one thousand, five hundred twenty-five".