312226 has 8 divisors (see below), whose sum is σ = 473040. Its totient is φ = 154548.

The previous prime is 312217. The next prime is 312229. The reversal of 312226 is 622213.

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

It is not an unprimeable number, because it can be changed into a prime (312229) by changing a digit.

312226 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516 + ... + 943.

It is an arithmetic number, because the mean of its divisors is an integer number (59130).

2³¹²²²⁶ is an apocalyptic number.

312226 is a deficient number, since it is larger than the sum of its proper divisors (160814).

312226 is a wasteful number, since it uses less digits than its factorization.

312226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its digits is 144, while the sum is 16.

The square root of 312226 is about 558.7718675810. The cubic root of 312226 is about 67.8406012707.

Adding to 312226 its reverse (622213), we get a palindrome (934439).

It can be divided in two parts, 31 and 2226, that multiplied together give a triangular number (69006 = T₃₇₁).

The spelling of 312226 in words is "three hundred twelve thousand, two hundred twenty-six".