312322345 has 4 divisors (see below), whose sum is σ = 374786820. Its totient is φ = 249857872.

The previous prime is 312322333. The next prime is 312322349. The reversal of 312322345 is 543223213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 214944921 + 97377424 = 14661^2 + 9868^2 .

It is a cyclic number.

It is not a de Polignac number, because 312322345 - 2¹⁹ = 311798057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312322349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31232230 + ... + 31232239.

It is an arithmetic number, because the mean of its divisors is an integer number (93696705).

Almost surely, 2^312322345 is an apocalyptic number.

It is an amenable number.

312322345 is a deficient number, since it is larger than the sum of its proper divisors (62464475).

312322345 is an equidigital number, since it uses as much as digits as its factorization.

312322345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62464474.

The product of its digits is 4320, while the sum is 25.

The square root of 312322345 is about 17672.6439731015. The cubic root of 312322345 is about 678.4757851427.

Adding to 312322345 its reverse (543223213), we get a palindrome (855545558).

The spelling of 312322345 in words is "three hundred twelve million, three hundred twenty-two thousand, three hundred forty-five".