31041361 has 8 divisors (see below), whose sum is σ = 33483240. Its totient is φ = 28607232.

The previous prime is 31041317. The next prime is 31041379. The reversal of 31041361 is 16314013.

It can be written as a sum of positive squares in 4 ways, for example, as 1000000 + 30041361 = 1000^2 + 5481^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 31041361 - 2¹¹ = 31039313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31041061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8505 + ... + 11593.

It is an arithmetic number, because the mean of its divisors is an integer number (4185405).

Almost surely, 2^31041361 is an apocalyptic number.

It is an amenable number.

31041361 is a deficient number, since it is larger than the sum of its proper divisors (2441879).

31041361 is a wasteful number, since it uses less digits than its factorization.

31041361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 31041361 is about 5571.4774521665. The cubic root of 31041361 is about 314.2777135212.

Adding to 31041361 its reverse (16314013), we get a palindrome (47355374).

It can be divided in two parts, 3104 and 1361, that added together give a triangular number (4465 = T₉₄).

The spelling of 31041361 in words is "thirty-one million, forty-one thousand, three hundred sixty-one".