4243129 has 4 divisors (see below), whose sum is σ = 4628880. Its totient is φ = 3857380.

The previous prime is 4243121. The next prime is 4243139. The reversal of 4243129 is 9213424.

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 4243129 - 2³ = 4243121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4243121) 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, 192859 + ... + 192880.

It is an arithmetic number, because the mean of its divisors is an integer number (1157220).

Almost surely, 2^4243129 is an apocalyptic number.

It is an amenable number.

4243129 is a deficient number, since it is larger than the sum of its proper divisors (385751).

4243129 is a wasteful number, since it uses less digits than its factorization.

4243129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385750.

The product of its digits is 1728, while the sum is 25.

The square root of 4243129 is about 2059.8856764394. The cubic root of 4243129 is about 161.8932513223.

It can be divided in two parts, 424 and 3129, that added together give a palindrome (3553).

The spelling of 4243129 in words is "four million, two hundred forty-three thousand, one hundred twenty-nine".