101032009 has 4 divisors (see below), whose sum is σ = 108803716. Its totient is φ = 93260304.

The previous prime is 101031943. The next prime is 101032033. The reversal of 101032009 is 900230101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35664784 + 65367225 = 5972^2 + 8085^2 .

It is a cyclic number.

It is not a de Polignac number, because 101032009 - 2⁷ = 101031881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101031983 and 101032001.

It is not an unprimeable number, because it can be changed into a prime (101032079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3885834 + ... + 3885859.

It is an arithmetic number, because the mean of its divisors is an integer number (27200929).

Almost surely, 2^101032009 is an apocalyptic number.

It is an amenable number.

101032009 is a deficient number, since it is larger than the sum of its proper divisors (7771707).

101032009 is an equidigital number, since it uses as much as digits as its factorization.

101032009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7771706.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 101032009 is about 10051.4680022373. The cubic root of 101032009 is about 465.7501423555.

The spelling of 101032009 in words is "one hundred one million, thirty-two thousand, nine".