31085041 has 4 divisors (see below), whose sum is σ = 33476212. Its totient is φ = 28693872.

The previous prime is 31084981. The next prime is 31085053. The reversal of 31085041 is 14058013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9740641 + 21344400 = 3121^2 + 4620^2 .

It is a cyclic number.

It is not a de Polignac number, because 31085041 - 2⁷ = 31084913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31085141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1195566 + ... + 1195591.

It is an arithmetic number, because the mean of its divisors is an integer number (8369053).

Almost surely, 2^31085041 is an apocalyptic number.

It is an amenable number.

31085041 is a deficient number, since it is larger than the sum of its proper divisors (2391171).

31085041 is a wasteful number, since it uses less digits than its factorization.

31085041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391170.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 31085041 is about 5575.3960397446. The cubic root of 31085041 is about 314.4250568951.

The spelling of 31085041 in words is "thirty-one million, eighty-five thousand, forty-one".