436121 has 4 divisors (see below), whose sum is σ = 498432. Its totient is φ = 373812.

The previous prime is 436097. The next prime is 436127. The reversal of 436121 is 121634.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 436121 - 2¹⁸ = 173977 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 436121.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 436121.

It is not an unprimeable number, because it can be changed into a prime (436127) 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, 31145 + ... + 31158.

It is an arithmetic number, because the mean of its divisors is an integer number (124608).

2⁴³⁶¹²¹ is an apocalyptic number.

It is an amenable number.

436121 is a deficient number, since it is larger than the sum of its proper divisors (62311).

436121 is an equidigital number, since it uses as much as digits as its factorization.

436121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62310.

The product of its digits is 144, while the sum is 17.

The square root of 436121 is about 660.3945790208. The cubic root of 436121 is about 75.8348792772.

Adding to 436121 its reverse (121634), we get a palindrome (557755).

The spelling of 436121 in words is "four hundred thirty-six thousand, one hundred twenty-one".