431789201 has 2 divisors, whose sum is σ = 431789202. Its totient is φ = 431789200.

The previous prime is 431789179. The next prime is 431789203. The reversal of 431789201 is 102987134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224400400 + 207388801 = 14980^2 + 14401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431789201 is a prime.

Together with 431789203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431789203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215894600 + 215894601.

It is an arithmetic number, because the mean of its divisors is an integer number (215894601).

Almost surely, 2^431789201 is an apocalyptic number.

It is an amenable number.

431789201 is a deficient number, since it is larger than the sum of its proper divisors (1).

431789201 is an equidigital number, since it uses as much as digits as its factorization.

431789201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 431789201 is about 20779.5380362510. The cubic root of 431789201 is about 755.8296515535.

The spelling of 431789201 in words is "four hundred thirty-one million, seven hundred eighty-nine thousand, two hundred one".