16481975 has 6 divisors (see below), whose sum is σ = 20437680. Its totient is φ = 13185560.

The previous prime is 16481951. The next prime is 16481981. The reversal of 16481975 is 57918461.

It is not a de Polignac number, because 16481975 - 2⁸ = 16481719 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 (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 329615 + ... + 329664.

It is an arithmetic number, because the mean of its divisors is an integer number (3406280).

Almost surely, 2^16481975 is an apocalyptic number.

16481975 is a deficient number, since it is larger than the sum of its proper divisors (3955705).

16481975 is an equidigital number, since it uses as much as digits as its factorization.

16481975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659289 (or 659284 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The square root of 16481975 is about 4059.7998719149. The cubic root of 16481975 is about 254.4894307943.

The spelling of 16481975 in words is "sixteen million, four hundred eighty-one thousand, nine hundred seventy-five".