4023131 has 4 divisors (see below), whose sum is σ = 4597872. Its totient is φ = 3448392.

The previous prime is 4023127. The next prime is 4023161. The reversal of 4023131 is 1313204.

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 4023131 - 2² = 4023127 is a prime.

It is a super-2 number, since 2×4023131² = 32371166086322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4023161) 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, 287360 + ... + 287373.

It is an arithmetic number, because the mean of its divisors is an integer number (1149468).

Almost surely, 2^4023131 is an apocalyptic number.

4023131 is a deficient number, since it is larger than the sum of its proper divisors (574741).

4023131 is an equidigital number, since it uses as much as digits as its factorization.

4023131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574740.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 4023131 is about 2005.7744140356. The cubic root of 4023131 is about 159.0455020543.

Adding to 4023131 its reverse (1313204), we get a palindrome (5336335).

The spelling of 4023131 in words is "four million, twenty-three thousand, one hundred thirty-one".