31345041 has 32 divisors (see below), whose sum is σ = 54154240. Its totient is φ = 15660864.

The previous prime is 31345019. The next prime is 31345049. The reversal of 31345041 is 14054313.

It is not a de Polignac number, because 31345041 - 2⁶ = 31344977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 31344999 and 31345017.

It is not an unprimeable number, because it can be changed into a prime (31345049) 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 31 ways as a sum of consecutive naturals, for example, 2166 + ... + 8208.

It is an arithmetic number, because the mean of its divisors is an integer number (1692320).

Almost surely, 2^31345041 is an apocalyptic number.

It is an amenable number.

31345041 is a deficient number, since it is larger than the sum of its proper divisors (22809199).

31345041 is a wasteful number, since it uses less digits than its factorization.

31345041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6085.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 31345041 is about 5598.6642156857. The cubic root of 31345041 is about 315.2992570553.

Adding to 31345041 its reverse (14054313), we get a palindrome (45399354).

It can be divided in two parts, 313 and 45041, that added together give a palindrome (45354).

The spelling of 31345041 in words is "thirty-one million, three hundred forty-five thousand, forty-one".