100664131 has 2 divisors, whose sum is σ = 100664132. Its totient is φ = 100664130.

The previous prime is 100664101. The next prime is 100664141. The reversal of 100664131 is 131466001.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (131466001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100664131 is a prime.

It is a super-2 number, since 2×100664131² = 20266534539970322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100664101) 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 as a sum of consecutive naturals, namely, 50332065 + 50332066.

It is an arithmetic number, because the mean of its divisors is an integer number (50332066).

Almost surely, 2^100664131 is an apocalyptic number.

100664131 is a deficient number, since it is larger than the sum of its proper divisors (1).

100664131 is an equidigital number, since it uses as much as digits as its factorization.

100664131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 100664131 is about 10033.1515985756. The cubic root of 100664131 is about 465.1841579890.

The spelling of 100664131 in words is "one hundred million, six hundred sixty-four thousand, one hundred thirty-one".