8116129 has 4 divisors (see below), whose sum is σ = 9275584. Its totient is φ = 6956676.

The previous prime is 8116127. The next prime is 8116133. The reversal of 8116129 is 9216118.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 8116129 - 2¹ = 8116127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8116097 and 8116106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8116127) 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, 579717 + ... + 579730.

It is an arithmetic number, because the mean of its divisors is an integer number (2318896).

Almost surely, 2^8116129 is an apocalyptic number.

It is an amenable number.

8116129 is a deficient number, since it is larger than the sum of its proper divisors (1159455).

8116129 is a wasteful number, since it uses less digits than its factorization.

8116129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159454.

The product of its digits is 864, while the sum is 28.

The square root of 8116129 is about 2848.8820614409. The cubic root of 8116129 is about 200.9630964484.

It can be divided in two parts, 81 and 16129, that multiplied together give a square (1306449 = 1143²).

The spelling of 8116129 in words is "eight million, one hundred sixteen thousand, one hundred twenty-nine".