31082642 has 8 divisors (see below), whose sum is σ = 46653516. Its totient is φ = 15531472.

The previous prime is 31082603. The next prime is 31082657. The reversal of 31082642 is 24628013.

It can be written as a sum of positive squares in 2 ways, for example, as 27552001 + 3530641 = 5249^2 + 1879^2 .

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

It is a super-2 number, since 2×31082642² = 1932261267400328, which contains 22 as substring.

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, 8 + ... + 7884.

Almost surely, 2^31082642 is an apocalyptic number.

31082642 is a deficient number, since it is larger than the sum of its proper divisors (15570874).

31082642 is a wasteful number, since it uses less digits than its factorization.

31082642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9852.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 31082642 is about 5575.1808939262. The cubic root of 31082642 is about 314.4169680621.

The spelling of 31082642 in words is "thirty-one million, eighty-two thousand, six hundred forty-two".