352144321 has 2 divisors, whose sum is σ = 352144322. Its totient is φ = 352144320.

The previous prime is 352144319. The next prime is 352144333. The reversal of 352144321 is 123441253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322561600 + 29582721 = 17960^2 + 5439^2 .

It is a cyclic number.

It is not a de Polignac number, because 352144321 - 2¹ = 352144319 is a prime.

Together with 352144319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (352144301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176072160 + 176072161.

It is an arithmetic number, because the mean of its divisors is an integer number (176072161).

Almost surely, 2^352144321 is an apocalyptic number.

It is an amenable number.

352144321 is a deficient number, since it is larger than the sum of its proper divisors (1).

352144321 is an equidigital number, since it uses as much as digits as its factorization.

352144321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 352144321 is about 18765.5088127128. The cubic root of 352144321 is about 706.1661507367.

Adding to 352144321 its reverse (123441253), we get a palindrome (475585574).

The spelling of 352144321 in words is "three hundred fifty-two million, one hundred forty-four thousand, three hundred twenty-one".