101086009 has 4 divisors (see below), whose sum is σ = 104346880. Its totient is φ = 97825140.

The previous prime is 101085979. The next prime is 101086021. The reversal of 101086009 is 900680101.

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: 900680101 = 103 ⋅8744467.

It is a cyclic number.

It is not a de Polignac number, because 101086009 - 2⁵ = 101085977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101086039) 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, 1630389 + ... + 1630450.

It is an arithmetic number, because the mean of its divisors is an integer number (26086720).

Almost surely, 2^101086009 is an apocalyptic number.

It is an amenable number.

101086009 is a deficient number, since it is larger than the sum of its proper divisors (3260871).

101086009 is an equidigital number, since it uses as much as digits as its factorization.

101086009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260870.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 101086009 is about 10054.1538181987. The cubic root of 101086009 is about 465.8331062545.

The spelling of 101086009 in words is "one hundred one million, eighty-six thousand, nine".