312378355 has 8 divisors (see below), whose sum is σ = 378566064. Its totient is φ = 247428000.

The previous prime is 312378337. The next prime is 312378371. The reversal of 312378355 is 553873213.

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

It is not a de Polignac number, because 312378355 - 2¹¹ = 312376307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308781 + ... + 309790.

It is an arithmetic number, because the mean of its divisors is an integer number (47320758).

Almost surely, 2^312378355 is an apocalyptic number.

312378355 is a deficient number, since it is larger than the sum of its proper divisors (66187709).

312378355 is a wasteful number, since it uses less digits than its factorization.

312378355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618677.

The product of its digits is 75600, while the sum is 37.

The square root of 312378355 is about 17674.2285545933. The cubic root of 312378355 is about 678.5163406328.

The spelling of 312378355 in words is "three hundred twelve million, three hundred seventy-eight thousand, three hundred fifty-five".