31140674 has 8 divisors (see below), whose sum is σ = 46770240. Its totient is φ = 15550596.

The previous prime is 31140673. The next prime is 31140679. The reversal of 31140674 is 47604113.

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

It is not an unprimeable number, because it can be changed into a prime (31140673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7814 + ... + 11105.

It is an arithmetic number, because the mean of its divisors is an integer number (5846280).

Almost surely, 2^31140674 is an apocalyptic number.

31140674 is a deficient number, since it is larger than the sum of its proper divisors (15629566).

31140674 is a wasteful number, since it uses less digits than its factorization.

31140674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19744.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 31140674 is about 5580.3829617688. The cubic root of 31140674 is about 314.6125209570.

Adding to 31140674 its reverse (47604113), we get a palindrome (78744787).

The spelling of 31140674 in words is "thirty-one million, one hundred forty thousand, six hundred seventy-four".