100656813 has 32 divisors (see below), whose sum is σ = 151113600. Its totient is φ = 59222016.

The previous prime is 100656811. The next prime is 100656817. The reversal of 100656813 is 318656001.

It is not a de Polignac number, because 100656813 - 2¹ = 100656811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100656811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105145 + ... + 106097.

It is an arithmetic number, because the mean of its divisors is an integer number (4722300).

Almost surely, 2^100656813 is an apocalyptic number.

It is an amenable number.

100656813 is a deficient number, since it is larger than the sum of its proper divisors (50456787).

100656813 is a wasteful number, since it uses less digits than its factorization.

100656813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 100656813 is about 10032.7869009563. The cubic root of 100656813 is about 465.1728851879.

The spelling of 100656813 in words is "one hundred million, six hundred fifty-six thousand, eight hundred thirteen".