4231145133 has 16 divisors (see below), whose sum is σ = 6308295360. Its totient is φ = 2802793968.

The previous prime is 4231145119. The next prime is 4231145161. The reversal of 4231145133 is 3315411324.

It is a happy number.

It is not a de Polignac number, because 4231145133 - 2¹⁷ = 4231014061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4231145097 and 4231145106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231147133) 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 15 ways as a sum of consecutive naturals, for example, 494835 + ... + 503312.

It is an arithmetic number, because the mean of its divisors is an integer number (394268460).

Almost surely, 2^4231145133 is an apocalyptic number.

It is an amenable number.

4231145133 is a deficient number, since it is larger than the sum of its proper divisors (2077150227).

4231145133 is a wasteful number, since it uses less digits than its factorization.

4231145133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998313 (or 998307 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 4231145133 is about 65047.2530780509. The cubic root of 4231145133 is about 1617.4069593656.

Adding to 4231145133 its reverse (3315411324), we get a palindrome (7546556457).

The spelling of 4231145133 in words is "four billion, two hundred thirty-one million, one hundred forty-five thousand, one hundred thirty-three".