100132661 has 2 divisors, whose sum is σ = 100132662. Its totient is φ = 100132660.

The previous prime is 100132657. The next prime is 100132667. The reversal of 100132661 is 166231001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84180625 + 15952036 = 9175^2 + 3994^2 .

It is a cyclic number.

It is not a de Polignac number, because 100132661 - 2² = 100132657 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100132667) 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 as a sum of consecutive naturals, namely, 50066330 + 50066331.

It is an arithmetic number, because the mean of its divisors is an integer number (50066331).

Almost surely, 2^100132661 is an apocalyptic number.

It is an amenable number.

100132661 is a deficient number, since it is larger than the sum of its proper divisors (1).

100132661 is an equidigital number, since it uses as much as digits as its factorization.

100132661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 100132661 is about 10006.6308515904. The cubic root of 100132661 is about 464.3640452701.

Adding to 100132661 its reverse (166231001), we get a palindrome (266363662).

The spelling of 100132661 in words is "one hundred million, one hundred thirty-two thousand, six hundred sixty-one".