100635245 has 16 divisors (see below), whose sum is σ = 122964912. Its totient is φ = 79050240.

The previous prime is 100635233. The next prime is 100635247. The reversal of 100635245 is 542536001.

It can be written as a sum of positive squares in 8 ways, for example, as 8743849 + 91891396 = 2957^2 + 9586^2 .

It is not a de Polignac number, because 100635245 - 2¹⁰ = 100634221 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 (100635247) 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, 106475 + ... + 107415.

It is an arithmetic number, because the mean of its divisors is an integer number (7685307).

Almost surely, 2^100635245 is an apocalyptic number.

It is an amenable number.

100635245 is a deficient number, since it is larger than the sum of its proper divisors (22329667).

100635245 is an equidigital number, since it uses as much as digits as its factorization.

100635245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 100635245 is about 10031.7119675557. The cubic root of 100635245 is about 465.1396582088.

The spelling of 100635245 in words is "one hundred million, six hundred thirty-five thousand, two hundred forty-five".