435121 has 4 divisors (see below), whose sum is σ = 440100. Its totient is φ = 430144.

The previous prime is 435109. The next prime is 435131. The reversal of 435121 is 121534.

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 190096 + 245025 = 436^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 435121 - 2¹¹ = 433073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 435095 and 435104.

It is not an unprimeable number, because it can be changed into a prime (435131) 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, 2356 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (110025).

2⁴³⁵¹²¹ is an apocalyptic number.

It is an amenable number.

435121 is a deficient number, since it is larger than the sum of its proper divisors (4979).

435121 is an equidigital number, since it uses as much as digits as its factorization.

435121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4978.

The product of its digits is 120, while the sum is 16.

The square root of 435121 is about 659.6370213989. The cubic root of 435121 is about 75.7768732690.

Adding to 435121 its reverse (121534), we get a palindrome (556655).

The spelling of 435121 in words is "four hundred thirty-five thousand, one hundred twenty-one".