31039941 has 8 divisors (see below), whose sum is σ = 41499040. Its totient is φ = 20637072.

The previous prime is 31039933. The next prime is 31039963. The reversal of 31039941 is 14993013.

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

It is not a de Polignac number, because 31039941 - 2³ = 31039933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31039899 and 31039908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31039991) 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 7 ways as a sum of consecutive naturals, for example, 12751 + ... + 14988.

It is an arithmetic number, because the mean of its divisors is an integer number (5187380).

Almost surely, 2^31039941 is an apocalyptic number.

It is an amenable number.

31039941 is a deficient number, since it is larger than the sum of its proper divisors (10459099).

31039941 is a wasteful number, since it uses less digits than its factorization.

31039941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28115.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 31039941 is about 5571.3500159297. The cubic root of 31039941 is about 314.2729211932.

The spelling of 31039941 in words is "thirty-one million, thirty-nine thousand, nine hundred forty-one".