16875481 has 4 divisors (see below), whose sum is σ = 19286272. Its totient is φ = 14464692.

The previous prime is 16875473. The next prime is 16875487. The reversal of 16875481 is 18457861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16875481 - 2³ = 16875473 is a prime.

It is a super-2 number, since 2×16875481² = 569563717962722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16875487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205385 + ... + 1205398.

It is an arithmetic number, because the mean of its divisors is an integer number (4821568).

Almost surely, 2^16875481 is an apocalyptic number.

It is an amenable number.

16875481 is a deficient number, since it is larger than the sum of its proper divisors (2410791).

16875481 is an equidigital number, since it uses as much as digits as its factorization.

16875481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410790.

The product of its digits is 53760, while the sum is 40.

The square root of 16875481 is about 4107.9777263272. The cubic root of 16875481 is about 256.4988290107.

The spelling of 16875481 in words is "sixteen million, eight hundred seventy-five thousand, four hundred eighty-one".