312213134 has 8 divisors (see below), whose sum is σ = 471193320. Its totient is φ = 155148696.

The previous prime is 312213061. The next prime is 312213163. The reversal of 312213134 is 431312213.

312213134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 478529 + ... + 479180.

It is an arithmetic number, because the mean of its divisors is an integer number (58899165).

Almost surely, 2^312213134 is an apocalyptic number.

312213134 is a deficient number, since it is larger than the sum of its proper divisors (158980186).

312213134 is a wasteful number, since it uses less digits than its factorization.

312213134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957874.

The product of its digits is 432, while the sum is 20.

The square root of 312213134 is about 17669.5538709952. The cubic root of 312213134 is about 678.3966941454.

Adding to 312213134 its reverse (431312213), we get a palindrome (743525347).

The spelling of 312213134 in words is "three hundred twelve million, two hundred thirteen thousand, one hundred thirty-four".