100640611 has 8 divisors (see below), whose sum is σ = 102042720. Its totient is φ = 99248448.

The previous prime is 100640593. The next prime is 100640621. The reversal of 100640611 is 116046001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100640611 - 2⁷ = 100640483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100640621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19170 + ... + 23848.

It is an arithmetic number, because the mean of its divisors is an integer number (12755340).

Almost surely, 2^100640611 is an apocalyptic number.

100640611 is a deficient number, since it is larger than the sum of its proper divisors (1402109).

100640611 is a wasteful number, since it uses less digits than its factorization.

100640611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 100640611 is about 10031.9794158481. The cubic root of 100640611 is about 465.1479253424.

Adding to 100640611 its reverse (116046001), we get a palindrome (216686612).

The spelling of 100640611 in words is "one hundred million, six hundred forty thousand, six hundred eleven".