16081129 has 4 divisors (see below), whose sum is σ = 16091860. Its totient is φ = 16070400.

The previous prime is 16081127. The next prime is 16081141. The reversal of 16081129 is 92118061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1243225 + 14837904 = 1115^2 + 3852^2 .

It is a cyclic number.

It is not a de Polignac number, because 16081129 - 2¹ = 16081127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16081097 and 16081106.

It is not an unprimeable number, because it can be changed into a prime (16081127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2664 + ... + 6265.

It is an arithmetic number, because the mean of its divisors is an integer number (4022965).

Almost surely, 2^16081129 is an apocalyptic number.

It is an amenable number.

16081129 is a deficient number, since it is larger than the sum of its proper divisors (10731).

16081129 is an equidigital number, since it uses as much as digits as its factorization.

16081129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10730.

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

The square root of 16081129 is about 4010.1283021869. The cubic root of 16081129 is about 252.4093927101.

The spelling of 16081129 in words is "sixteen million, eighty-one thousand, one hundred twenty-nine".