312375 has 48 divisors (see below), whose sum is σ = 640224. Its totient is φ = 134400.

The previous prime is 312371. The next prime is 312383. The reversal of 312375 is 573213.

It is a happy number.

It is not a de Polignac number, because 312375 - 2² = 312371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18367 + ... + 18383.

It is an arithmetic number, because the mean of its divisors is an integer number (13338).

2³¹²³⁷⁵ is an apocalyptic number.

312375 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

312375 is an abundant number, since it is smaller than the sum of its proper divisors (327849).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312375 is a wasteful number, since it uses less digits than its factorization.

312375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49 (or 32 counting only the distinct ones).

The product of its digits is 630, while the sum is 21.

The square root of 312375 is about 558.9051797935. The cubic root of 312375 is about 67.8513911495.

Adding to 312375 its reverse (573213), we get a palindrome (885588).

The spelling of 312375 in words is "three hundred twelve thousand, three hundred seventy-five".