312132443 has 8 divisors (see below), whose sum is σ = 359327712. Its totient is φ = 265588416.

The previous prime is 312132421. The next prime is 312132463. The reversal of 312132443 is 344231213.

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

It is a cyclic number.

It is not a de Polignac number, because 312132443 - 2¹⁶ = 312066907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312132463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161780 + ... + 163697.

It is an arithmetic number, because the mean of its divisors is an integer number (44915964).

Almost surely, 2^312132443 is an apocalyptic number.

312132443 is a deficient number, since it is larger than the sum of its proper divisors (47195269).

312132443 is a wasteful number, since it uses less digits than its factorization.

312132443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325621.

The product of its digits is 1728, while the sum is 23.

The square root of 312132443 is about 17667.2703890556. The cubic root of 312132443 is about 678.3382455855.

Adding to 312132443 its reverse (344231213), we get a palindrome (656363656).

The spelling of 312132443 in words is "three hundred twelve million, one hundred thirty-two thousand, four hundred forty-three".