31480075 has 12 divisors (see below), whose sum is σ = 42584328. Its totient is φ = 22894400.

The previous prime is 31480061. The next prime is 31480079. The reversal of 31480075 is 57008413.

It is not a de Polignac number, because 31480075 - 2⁷ = 31479947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31480079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56962 + ... + 57511.

It is an arithmetic number, because the mean of its divisors is an integer number (3548694).

Almost surely, 2^31480075 is an apocalyptic number.

31480075 is a deficient number, since it is larger than the sum of its proper divisors (11104253).

31480075 is a wasteful number, since it uses less digits than its factorization.

31480075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114494 (or 114489 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 31480075 is about 5610.7107392914. The cubic root of 31480075 is about 315.7513767029.

Adding to 31480075 its reverse (57008413), we get a palindrome (88488488).

The spelling of 31480075 in words is "thirty-one million, four hundred eighty thousand, seventy-five".