1828047129 has 4 divisors (see below), whose sum is σ = 2437396176. Its totient is φ = 1218698084.

The previous prime is 1828047113. The next prime is 1828047149. The reversal of 1828047129 is 9217408281.

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 1828047129 - 2⁴ = 1828047113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1828047149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304674519 + ... + 304674524.

It is an arithmetic number, because the mean of its divisors is an integer number (609349044).

Almost surely, 2^1828047129 is an apocalyptic number.

It is an amenable number.

1828047129 is a deficient number, since it is larger than the sum of its proper divisors (609349047).

1828047129 is an equidigital number, since it uses as much as digits as its factorization.

1828047129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609349046.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 1828047129 is about 42755.6677997198. The cubic root of 1828047129 is about 1222.7259500142.

The spelling of 1828047129 in words is "one billion, eight hundred twenty-eight million, forty-seven thousand, one hundred twenty-nine".