16213975 has 12 divisors (see below), whose sum is σ = 20188440. Its totient is φ = 12917600.

The previous prime is 16213969. The next prime is 16213979. The reversal of 16213975 is 57931261.

It is not a de Polignac number, because 16213975 - 2⁵ = 16213943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16213975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16213979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5520 + ... + 7930.

It is an arithmetic number, because the mean of its divisors is an integer number (1682370).

Almost surely, 2^16213975 is an apocalyptic number.

16213975 is a deficient number, since it is larger than the sum of its proper divisors (3974465).

16213975 is a wasteful number, since it uses less digits than its factorization.

16213975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690 (or 2685 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 16213975 is about 4026.6580435890. The cubic root of 16213975 is about 253.1025377619.

The spelling of 16213975 in words is "sixteen million, two hundred thirteen thousand, nine hundred seventy-five".