101127009 has 4 divisors (see below), whose sum is σ = 134836016. Its totient is φ = 67418004.

The previous prime is 101127001. The next prime is 101127023. The reversal of 101127009 is 900721101.

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 not a de Polignac number, because 101127009 - 2³ = 101127001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101127001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16854499 + ... + 16854504.

It is an arithmetic number, because the mean of its divisors is an integer number (33709004).

Almost surely, 2^101127009 is an apocalyptic number.

It is an amenable number.

101127009 is a deficient number, since it is larger than the sum of its proper divisors (33709007).

101127009 is an equidigital number, since it uses as much as digits as its factorization.

101127009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33709006.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 101127009 is about 10056.1925697552. The cubic root of 101127009 is about 465.8960776322.

The spelling of 101127009 in words is "one hundred one million, one hundred twenty-seven thousand, nine".