312311445 has 8 divisors (see below), whose sum is σ = 499698336. Its totient is φ = 166566096.

The previous prime is 312311443. The next prime is 312311459. The reversal of 312311445 is 544113213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312311445 - 2¹ = 312311443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312311443) 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 in 7 ways as a sum of consecutive naturals, for example, 10410367 + ... + 10410396.

It is an arithmetic number, because the mean of its divisors is an integer number (62462292).

Almost surely, 2^312311445 is an apocalyptic number.

It is an amenable number.

312311445 is a deficient number, since it is larger than the sum of its proper divisors (187386891).

312311445 is a wasteful number, since it uses less digits than its factorization.

312311445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20820771.

The product of its digits is 1440, while the sum is 24.

The square root of 312311445 is about 17672.3355841835. The cubic root of 312311445 is about 678.4678921520.

Adding to 312311445 its reverse (544113213), we get a palindrome (856424658).

The spelling of 312311445 in words is "three hundred twelve million, three hundred eleven thousand, four hundred forty-five".