4642129 has 4 divisors (see below), whose sum is σ = 4690084. Its totient is φ = 4594176.

The previous prime is 4642123. The next prime is 4642163. The reversal of 4642129 is 9212464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2310400 + 2331729 = 1520^2 + 1527^2 .

It is a cyclic number.

It is not a de Polignac number, because 4642129 - 2¹¹ = 4640081 is a prime.

It is a Duffinian number.

4642129 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4642097 and 4642106.

It is not an unprimeable number, because it can be changed into a prime (4642123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23832 + ... + 24025.

It is an arithmetic number, because the mean of its divisors is an integer number (1172521).

Almost surely, 2^4642129 is an apocalyptic number.

It is an amenable number.

4642129 is a deficient number, since it is larger than the sum of its proper divisors (47955).

4642129 is an equidigital number, since it uses as much as digits as its factorization.

4642129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47954.

The product of its digits is 3456, while the sum is 28.

The square root of 4642129 is about 2154.5600478984. The cubic root of 4642129 is about 166.8165243268.

The spelling of 4642129 in words is "four million, six hundred forty-two thousand, one hundred twenty-nine".