4257129 has 16 divisors (see below), whose sum is σ = 5914304. Its totient is φ = 2721600.

The previous prime is 4257101. The next prime is 4257131. The reversal of 4257129 is 9217524.

It is not a de Polignac number, because 4257129 - 2⁹ = 4256617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4257096 and 4257105.

It is not an unprimeable number, because it can be changed into a prime (4257529) 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 15 ways as a sum of consecutive naturals, for example, 7599 + ... + 8139.

It is an arithmetic number, because the mean of its divisors is an integer number (369644).

Almost surely, 2^4257129 is an apocalyptic number.

It is an amenable number.

4257129 is a deficient number, since it is larger than the sum of its proper divisors (1657175).

4257129 is a wasteful number, since it uses less digits than its factorization.

4257129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its digits is 5040, while the sum is 30.

The square root of 4257129 is about 2063.2811248107. The cubic root of 4257129 is about 162.0711088528.

The spelling of 4257129 in words is "four million, two hundred fifty-seven thousand, one hundred twenty-nine".