31304041 has 8 divisors (see below), whose sum is σ = 32138568. Its totient is φ = 30480000.

The previous prime is 31304029. The next prime is 31304107. The reversal of 31304041 is 14040313.

It can be written as a sum of positive squares in 4 ways, for example, as 1010025 + 30294016 = 1005^2 + 5504^2 .

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 31304041 - 2⁷ = 31303913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31304341) 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, 3621 + ... + 8701.

It is an arithmetic number, because the mean of its divisors is an integer number (4017321).

Almost surely, 2^31304041 is an apocalyptic number.

It is an amenable number.

31304041 is a deficient number, since it is larger than the sum of its proper divisors (834527).

31304041 is a wasteful number, since it uses less digits than its factorization.

31304041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31304041 is about 5595.0014298479. The cubic root of 31304041 is about 315.1617242951.

Subtracting from 31304041 its sum of digits (16), we obtain a square (31304025 = 5595²).

Adding to 31304041 its reverse (14040313), we get a palindrome (45344354).

The spelling of 31304041 in words is "thirty-one million, three hundred four thousand, forty-one".