4257123 has 16 divisors (see below), whose sum is σ = 6473376. Its totient is φ = 2465280.

The previous prime is 4257101. The next prime is 4257131. The reversal of 4257123 is 3217524.

It is not a de Polignac number, because 4257123 - 2¹² = 4253027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4257093 and 4257102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4257133) 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, 2548 + ... + 3873.

It is an arithmetic number, because the mean of its divisors is an integer number (404586).

Almost surely, 2^4257123 is an apocalyptic number.

4257123 is a deficient number, since it is larger than the sum of its proper divisors (2216253).

4257123 is a wasteful number, since it uses less digits than its factorization.

4257123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454.

The product of its digits is 1680, while the sum is 24.

The square root of 4257123 is about 2063.2796708154. The cubic root of 4257123 is about 162.0710327117.

The spelling of 4257123 in words is "four million, two hundred fifty-seven thousand, one hundred twenty-three".