4123131 has 4 divisors (see below), whose sum is σ = 5497512. Its totient is φ = 2748752.

The previous prime is 4123127. The next prime is 4123153. The reversal of 4123131 is 1313214.

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

It is a cyclic number.

It is not a de Polignac number, because 4123131 - 2² = 4123127 is a prime.

It is a super-2 number, since 2×4123131² = 34000418486322, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 4123131.

It is not an unprimeable number, because it can be changed into a prime (4123111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687186 + ... + 687191.

It is an arithmetic number, because the mean of its divisors is an integer number (1374378).

Almost surely, 2^4123131 is an apocalyptic number.

4123131 is a deficient number, since it is larger than the sum of its proper divisors (1374381).

4123131 is a wasteful number, since it uses less digits than its factorization.

4123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374380.

The product of its digits is 72, while the sum is 15.

The square root of 4123131 is about 2030.5494330353. The cubic root of 4123131 is about 160.3524910966.

Adding to 4123131 its reverse (1313214), we get a palindrome (5436345).

The spelling of 4123131 in words is "four million, one hundred twenty-three thousand, one hundred thirty-one".