931345 has 8 divisors (see below), whose sum is σ = 1183464. Its totient is φ = 701184.

The previous prime is 931319. The next prime is 931351. The reversal of 931345 is 543139.

It can be written as a sum of positive squares in 4 ways, for example, as 239121 + 692224 = 489^2 + 832^2 .

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 931345 - 2⁵ = 931313 is a prime.

It is a super-3 number, since 3×931345³ = 2423555763338665875, which contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5394 + ... + 5563.

It is an arithmetic number, because the mean of its divisors is an integer number (147933).

2⁹³¹³⁴⁵ is an apocalyptic number.

It is an amenable number.

931345 is a deficient number, since it is larger than the sum of its proper divisors (252119).

931345 is a wasteful number, since it uses less digits than its factorization.

931345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10979.

The product of its digits is 1620, while the sum is 25.

The square root of 931345 is about 965.0621741629. The cubic root of 931345 is about 97.6570338177.

It can be divided in two parts, 93134 and 5, that added together give a palindrome (93139).

The spelling of 931345 in words is "nine hundred thirty-one thousand, three hundred forty-five".