100631245 has 48 divisors (see below), whose sum is σ = 151014528. Its totient is φ = 63452160.

The previous prime is 100631221. The next prime is 100631263. The reversal of 100631245 is 542136001.

It is not a de Polignac number, because 100631245 - 2⁵ = 100631213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 206392 + ... + 206878.

It is an arithmetic number, because the mean of its divisors is an integer number (3146136).

Almost surely, 2^100631245 is an apocalyptic number.

It is an amenable number.

100631245 is a deficient number, since it is larger than the sum of its proper divisors (50383283).

100631245 is a wasteful number, since it uses less digits than its factorization.

100631245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 100631245 is about 10031.5125978090. The cubic root of 100631245 is about 465.1334954134.

Adding to 100631245 its reverse (542136001), we get a palindrome (642767246).

The spelling of 100631245 in words is "one hundred million, six hundred thirty-one thousand, two hundred forty-five".