431505241 has 2 divisors, whose sum is σ = 431505242. Its totient is φ = 431505240.

The previous prime is 431505227. The next prime is 431505289. The reversal of 431505241 is 142505134.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352650841 + 78854400 = 18779^2 + 8880^2 .

It is a cyclic number.

It is not a de Polignac number, because 431505241 - 2⁵ = 431505209 is a prime.

It is not a weakly prime, because it can be changed into another prime (431505541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215752620 + 215752621.

It is an arithmetic number, because the mean of its divisors is an integer number (215752621).

Almost surely, 2^431505241 is an apocalyptic number.

It is an amenable number.

431505241 is a deficient number, since it is larger than the sum of its proper divisors (1).

431505241 is an equidigital number, since it uses as much as digits as its factorization.

431505241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 431505241 is about 20772.7042293487. The cubic root of 431505241 is about 755.6639283618.

The spelling of 431505241 in words is "four hundred thirty-one million, five hundred five thousand, two hundred forty-one".