31661314 has 8 divisors (see below), whose sum is σ = 48161088. Its totient is φ = 15607620.

The previous prime is 31661309. The next prime is 31661351. The reversal of 31661314 is 41316613.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 111342 + ... + 111625.

It is an arithmetic number, because the mean of its divisors is an integer number (6020136).

Almost surely, 2^31661314 is an apocalyptic number.

31661314 is a deficient number, since it is larger than the sum of its proper divisors (16499774).

31661314 is a wasteful number, since it uses less digits than its factorization.

31661314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223040.

The product of its digits is 1296, while the sum is 25.

The square root of 31661314 is about 5626.8387216980. The cubic root of 31661314 is about 316.3561718643.

Adding to 31661314 its reverse (41316613), we get a palindrome (72977927).

The spelling of 31661314 in words is "thirty-one million, six hundred sixty-one thousand, three hundred fourteen".