375232321 has 2 divisors, whose sum is σ = 375232322. Its totient is φ = 375232320.

The previous prime is 375232309. The next prime is 375232379. The reversal of 375232321 is 123232573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264225025 + 111007296 = 16255^2 + 10536^2 .

It is an emirp because it is prime and its reverse (123232573) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 375232321 - 2²³ = 366843713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 375232321.

It is not a weakly prime, because it can be changed into another prime (375232021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187616160 + 187616161.

It is an arithmetic number, because the mean of its divisors is an integer number (187616161).

Almost surely, 2^375232321 is an apocalyptic number.

It is an amenable number.

375232321 is a deficient number, since it is larger than the sum of its proper divisors (1).

375232321 is an equidigital number, since it uses as much as digits as its factorization.

375232321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 28.

The square root of 375232321 is about 19370.9143046992. The cubic root of 375232321 is about 721.2736721283.

Adding to 375232321 its reverse (123232573), we get a palindrome (498464894).

The spelling of 375232321 in words is "three hundred seventy-five million, two hundred thirty-two thousand, three hundred twenty-one".