100640312 has 32 divisors (see below), whose sum is σ = 194400000. Its totient is φ = 48823008.

The previous prime is 100640303. The next prime is 100640329. The reversal of 100640312 is 213046001.

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 7 ways as a sum of consecutive naturals, for example, 35939 + ... + 38637.

It is an arithmetic number, because the mean of its divisors is an integer number (6075000).

Almost surely, 2^100640312 is an apocalyptic number.

It is an amenable number.

100640312 is a deficient number, since it is larger than the sum of its proper divisors (93759688).

100640312 is a wasteful number, since it uses less digits than its factorization.

100640312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 100640312 is about 10031.9645134939. The cubic root of 100640312 is about 465.1474646955.

Adding to 100640312 its reverse (213046001), we get a palindrome (313686313).

The spelling of 100640312 in words is "one hundred million, six hundred forty thousand, three hundred twelve".