4020025131 has 6 divisors (see below), whose sum is σ = 5806702980. Its totient is φ = 2680016748.

The previous prime is 4020025127. The next prime is 4020025147. The reversal of 4020025131 is 1315200204.

It is not a de Polignac number, because 4020025131 - 2² = 4020025127 is a prime.

It is a super-2 number, since 2×4020025131² = 32321204107743134322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4020025181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 223334721 + ... + 223334738.

It is an arithmetic number, because the mean of its divisors is an integer number (967783830).

Almost surely, 2^4020025131 is an apocalyptic number.

4020025131 is a deficient number, since it is larger than the sum of its proper divisors (1786677849).

4020025131 is a wasteful number, since it uses less digits than its factorization.

4020025131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446669465 (or 446669462 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 4020025131 is about 63403.6681194393. The cubic root of 4020025131 is about 1590.0456365209.

Adding to 4020025131 its reverse (1315200204), we get a palindrome (5335225335).

The spelling of 4020025131 in words is "four billion, twenty million, twenty-five thousand, one hundred thirty-one".