31105314 has 24 divisors (see below), whose sum is σ = 67622412. Its totient is φ = 10333440.

The previous prime is 31105309. The next prime is 31105339. The reversal of 31105314 is 41350113.

It can be written as a sum of positive squares in 2 ways, for example, as 24830289 + 6275025 = 4983^2 + 2505^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2874 + ... + 8394.

Almost surely, 2^31105314 is an apocalyptic number.

31105314 is an abundant number, since it is smaller than the sum of its proper divisors (36517098).

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

31105314 is a wasteful number, since it uses less digits than its factorization.

31105314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842 (or 5839 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 31105314 is about 5577.2138205380. The cubic root of 31105314 is about 314.4933958103.

Adding to 31105314 its reverse (41350113), we get a palindrome (72455427).

The spelling of 31105314 in words is "thirty-one million, one hundred five thousand, three hundred fourteen".