31942063 has 4 divisors (see below), whose sum is σ = 32805400. Its totient is φ = 31078728.

The previous prime is 31942039. The next prime is 31942067. The reversal of 31942063 is 36024913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36024913 = 2269 ⋅15877.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31942063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31942067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431613 + ... + 431686.

It is an arithmetic number, because the mean of its divisors is an integer number (8201350).

Almost surely, 2^31942063 is an apocalyptic number.

31942063 is a deficient number, since it is larger than the sum of its proper divisors (863337).

31942063 is an equidigital number, since it uses as much as digits as its factorization.

31942063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863336.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 31942063 is about 5651.7309737814. The cubic root of 31942063 is about 317.2884920290.

Adding to 31942063 its reverse (36024913), we get a palindrome (67966976).

The spelling of 31942063 in words is "thirty-one million, nine hundred forty-two thousand, sixty-three".