101866841 has 4 divisors (see below), whose sum is σ = 101912592. Its totient is φ = 101821092.

The previous prime is 101866829. The next prime is 101866859. The reversal of 101866841 is 148668101.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 148668101 = 131 ⋅1134871.

It is a cyclic number.

It is not a de Polignac number, because 101866841 - 2⁶ = 101866777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101866801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19355 + ... + 24048.

It is an arithmetic number, because the mean of its divisors is an integer number (25478148).

Almost surely, 2^101866841 is an apocalyptic number.

It is an amenable number.

101866841 is a deficient number, since it is larger than the sum of its proper divisors (45751).

101866841 is an equidigital number, since it uses as much as digits as its factorization.

101866841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45750.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 101866841 is about 10092.9104325759. The cubic root of 101866841 is about 467.0294631760.

The spelling of 101866841 in words is "one hundred one million, eight hundred sixty-six thousand, eight hundred forty-one".