100631001 has 8 divisors (see below), whose sum is σ = 135558304. Its totient is φ = 66395520.

The previous prime is 100630997. The next prime is 100631023. The reversal of 100631001 is 100136001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100631001 - 2² = 100630997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100631801) 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 7 ways as a sum of consecutive naturals, for example, 172615 + ... + 173196.

It is an arithmetic number, because the mean of its divisors is an integer number (16944788).

Almost surely, 2^100631001 is an apocalyptic number.

It is an amenable number.

100631001 is a deficient number, since it is larger than the sum of its proper divisors (34927303).

100631001 is an equidigital number, since it uses as much as digits as its factorization.

100631001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345911.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 100631001 is about 10031.5004361262. The cubic root of 100631001 is about 465.1331194776.

Adding to 100631001 its reverse (100136001), we get a palindrome (200767002).

The spelling of 100631001 in words is "one hundred million, six hundred thirty-one thousand, one".