312403214 has 4 divisors (see below), whose sum is σ = 468604824. Its totient is φ = 156201606.

The previous prime is 312403211. The next prime is 312403241. The reversal of 312403214 is 412304213.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312403211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78100802 + ... + 78100805.

It is an arithmetic number, because the mean of its divisors is an integer number (117151206).

Almost surely, 2^312403214 is an apocalyptic number.

312403214 is a deficient number, since it is larger than the sum of its proper divisors (156201610).

312403214 is a wasteful number, since it uses less digits than its factorization.

312403214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156201609.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 312403214 is about 17674.9317961909. The cubic root of 312403214 is about 678.5343388819.

Adding to 312403214 its reverse (412304213), we get a palindrome (724707427).

Subtracting 312403214 from its reverse (412304213), we obtain a palindrome (99900999).

The spelling of 312403214 in words is "three hundred twelve million, four hundred three thousand, two hundred fourteen".