100664461 has 4 divisors (see below), whose sum is σ = 101433024. Its totient is φ = 99895900.

The previous prime is 100664441. The next prime is 100664467. The reversal of 100664461 is 164466001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100664461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100664467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384085 + ... + 384346.

It is an arithmetic number, because the mean of its divisors is an integer number (25358256).

Almost surely, 2^100664461 is an apocalyptic number.

It is an amenable number.

100664461 is a deficient number, since it is larger than the sum of its proper divisors (768563).

100664461 is an equidigital number, since it uses as much as digits as its factorization.

100664461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768562.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 100664461 is about 10033.1680440427. The cubic root of 100664461 is about 465.1846663150.

The spelling of 100664461 in words is "one hundred million, six hundred sixty-four thousand, four hundred sixty-one".