432121 has 2 divisors, whose sum is σ = 432122. Its totient is φ = 432120.

The previous prime is 432097. The next prime is 432137. The reversal of 432121 is 121234.

432121 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319225 + 112896 = 565^2 + 336^2 .

It is a cyclic number.

It is not a de Polignac number, because 432121 - 2⁷ = 431993 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (432161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216060 + 216061.

It is an arithmetic number, because the mean of its divisors is an integer number (216061).

2⁴³²¹²¹ is an apocalyptic number.

It is an amenable number.

432121 is a deficient number, since it is larger than the sum of its proper divisors (1).

432121 is an equidigital number, since it uses as much as digits as its factorization.

432121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 13.

The square root of 432121 is about 657.3591103803. The cubic root of 432121 is about 75.6023202259.

Adding to 432121 its reverse (121234), we get a palindrome (553355).

The spelling of 432121 in words is "four hundred thirty-two thousand, one hundred twenty-one".