31104445 has 8 divisors (see below), whose sum is σ = 38235960. Its totient is φ = 24276480.

The previous prime is 31104431. The next prime is 31104473. The reversal of 31104445 is 54440113.

It can be written as a sum of positive squares in 4 ways, for example, as 34969 + 31069476 = 187^2 + 5574^2 .

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

It is not a de Polignac number, because 31104445 - 2⁵ = 31104413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75660 + ... + 76069.

It is an arithmetic number, because the mean of its divisors is an integer number (4779495).

Almost surely, 2^31104445 is an apocalyptic number.

It is an amenable number.

31104445 is a deficient number, since it is larger than the sum of its proper divisors (7131515).

31104445 is a wasteful number, since it uses less digits than its factorization.

31104445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151775.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 31104445 is about 5577.1359137105. The cubic root of 31104445 is about 314.4904670792.

Adding to 31104445 its reverse (54440113), we get a palindrome (85544558).

The spelling of 31104445 in words is "thirty-one million, one hundred four thousand, four hundred forty-five".