433121 has 4 divisors (see below), whose sum is σ = 466452. Its totient is φ = 399792.

The previous prime is 433117. The next prime is 433123. The reversal of 433121 is 121334.

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

It can be written as a sum of positive squares in 2 ways, for example, as 96721 + 336400 = 311^2 + 580^2 .

It is a cyclic number.

It is not a de Polignac number, because 433121 - 2² = 433117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 433096 and 433105.

It is not an unprimeable number, because it can be changed into a prime (433123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16646 + ... + 16671.

It is an arithmetic number, because the mean of its divisors is an integer number (116613).

2⁴³³¹²¹ is an apocalyptic number.

It is an amenable number.

433121 is a deficient number, since it is larger than the sum of its proper divisors (33331).

433121 is a wasteful number, since it uses less digits than its factorization.

433121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33330.

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

The square root of 433121 is about 658.1192900987. The cubic root of 433121 is about 75.6605940862.

Adding to 433121 its reverse (121334), we get a palindrome (554455).

It can be divided in two parts, 4331 and 21, that multiplied together give a triangular number (90951 = T₄₂₆).

The spelling of 433121 in words is "four hundred thirty-three thousand, one hundred twenty-one".