101408109 has 16 divisors (see below), whose sum is σ = 147671040. Its totient is φ = 61389360.

The previous prime is 101408107. The next prime is 101408119. The reversal of 101408109 is 901804101.

It is not a de Polignac number, because 101408109 - 2¹ = 101408107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101408107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56772 + ... + 58530.

It is an arithmetic number, because the mean of its divisors is an integer number (9229440).

Almost surely, 2^101408109 is an apocalyptic number.

It is an amenable number.

101408109 is a deficient number, since it is larger than the sum of its proper divisors (46262931).

101408109 is a wasteful number, since it uses less digits than its factorization.

101408109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 101408109 is about 10070.1593333969. The cubic root of 101408109 is about 466.3273578301.

The spelling of 101408109 in words is "one hundred one million, four hundred eight thousand, one hundred nine".