4012131 has 4 divisors (see below), whose sum is σ = 5349512. Its totient is φ = 2674752.

The previous prime is 4012111. The next prime is 4012133. The reversal of 4012131 is 1312104.

It is a happy number.

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

It is not a de Polignac number, because 4012131 - 2⁶ = 4012067 is a prime.

It is a super-2 number, since 2×4012131² = 32194390322322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4012133) 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, 668686 + ... + 668691.

It is an arithmetic number, because the mean of its divisors is an integer number (1337378).

Almost surely, 2^4012131 is an apocalyptic number.

4012131 is a deficient number, since it is larger than the sum of its proper divisors (1337381).

4012131 is a wasteful number, since it uses less digits than its factorization.

4012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337380.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 4012131 is about 2003.0304540870. The cubic root of 4012131 is about 158.9004162628.

Adding to 4012131 its reverse (1312104), we get a palindrome (5324235).

The spelling of 4012131 in words is "four million, twelve thousand, one hundred thirty-one".