433240131 has 4 divisors (see below), whose sum is σ = 577653512. Its totient is φ = 288826752.

The previous prime is 433240099. The next prime is 433240139. The reversal of 433240131 is 131042334.

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

It is not a de Polignac number, because 433240131 - 2⁵ = 433240099 is a prime.

It is a super-2 number, since 2×433240131² = 375394022217794322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 433240098 and 433240107.

It is not an unprimeable number, because it can be changed into a prime (433240139) 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, 72206686 + ... + 72206691.

It is an arithmetic number, because the mean of its divisors is an integer number (144413378).

Almost surely, 2^433240131 is an apocalyptic number.

433240131 is a deficient number, since it is larger than the sum of its proper divisors (144413381).

433240131 is a wasteful number, since it uses less digits than its factorization.

433240131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144413380.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 433240131 is about 20814.4212266400. The cubic root of 433240131 is about 756.6753032797.

Adding to 433240131 its reverse (131042334), we get a palindrome (564282465).

The spelling of 433240131 in words is "four hundred thirty-three million, two hundred forty thousand, one hundred thirty-one".