100531235 has 16 divisors (see below), whose sum is σ = 138117312. Its totient is φ = 68812800.

The previous prime is 100531231. The next prime is 100531247. The reversal of 100531235 is 532135001.

It is not a de Polignac number, because 100531235 - 2² = 100531231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100531231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20195 + ... + 24675.

It is an arithmetic number, because the mean of its divisors is an integer number (8632332).

Almost surely, 2^100531235 is an apocalyptic number.

100531235 is a deficient number, since it is larger than the sum of its proper divisors (37586077).

100531235 is an equidigital number, since it uses as much as digits as its factorization.

100531235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 100531235 is about 10026.5265670620. The cubic root of 100531235 is about 464.9793570055.

Adding to 100531235 its reverse (532135001), we get a palindrome (632666236).

The spelling of 100531235 in words is "one hundred million, five hundred thirty-one thousand, two hundred thirty-five".