4231557 has 12 divisors (see below), whose sum is σ = 6668064. Its totient is φ = 2564520.

The previous prime is 4231553. The next prime is 4231559. The reversal of 4231557 is 7551324.

It is a happy number.

It is not a de Polignac number, because 4231557 - 2² = 4231553 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 2⁹ + 3⁹ + 1 + 5³ + 5³ + 7⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 4231557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21273 + ... + 21470.

It is an arithmetic number, because the mean of its divisors is an integer number (555672).

Almost surely, 2^4231557 is an apocalyptic number.

It is an amenable number.

4231557 is a deficient number, since it is larger than the sum of its proper divisors (2436507).

4231557 is a wasteful number, since it uses less digits than its factorization.

4231557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42760 (or 42757 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 4231557 is about 2057.0748649478. The cubic root of 4231557 is about 161.7459438062.

The spelling of 4231557 in words is "four million, two hundred thirty-one thousand, five hundred fifty-seven".