101168609 has 4 divisors (see below), whose sum is σ = 101907204. Its totient is φ = 100430016.

The previous prime is 101168603. The next prime is 101168621. The reversal of 101168609 is 906861101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906861101 = 3109 ⋅291689.

It can be written as a sum of positive squares in 2 ways, for example, as 87478609 + 13690000 = 9353^2 + 3700^2 .

It is a cyclic number.

It is not a de Polignac number, because 101168609 - 2¹⁶ = 101103073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101168603) 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, 369092 + ... + 369365.

It is an arithmetic number, because the mean of its divisors is an integer number (25476801).

Almost surely, 2^101168609 is an apocalyptic number.

It is an amenable number.

101168609 is a deficient number, since it is larger than the sum of its proper divisors (738595).

101168609 is an equidigital number, since it uses as much as digits as its factorization.

101168609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738594.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 101168609 is about 10058.2607343417. The cubic root of 101168609 is about 465.9599531489.

The spelling of 101168609 in words is "one hundred one million, one hundred sixty-eight thousand, six hundred nine".