312145322 has 8 divisors (see below), whose sum is σ = 472594176. Its totient is φ = 154613932.

The previous prime is 312145303. The next prime is 312145333. The reversal of 312145322 is 223541213.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729098 + ... + 729525.

It is an arithmetic number, because the mean of its divisors is an integer number (59074272).

Almost surely, 2^312145322 is an apocalyptic number.

312145322 is a deficient number, since it is larger than the sum of its proper divisors (160448854).

312145322 is a wasteful number, since it uses less digits than its factorization.

312145322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458732.

The product of its digits is 1440, while the sum is 23.

The square root of 312145322 is about 17667.6348728402. The cubic root of 312145322 is about 678.3475751701.

Adding to 312145322 its reverse (223541213), we get a palindrome (535686535).

The spelling of 312145322 in words is "three hundred twelve million, one hundred forty-five thousand, three hundred twenty-two".