16382121 has 12 divisors (see below), whose sum is σ = 25409232. Its totient is φ = 9361128.

The previous prime is 16382087. The next prime is 16382131. The reversal of 16382121 is 12128361.

It is not a de Polignac number, because 16382121 - 2¹¹ = 16380073 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

16382121 is a modest number, since divided by 2121 gives 1638 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16382091 and 16382100.

It is not an unprimeable number, because it can be changed into a prime (16382131) 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, 55575 + ... + 55868.

It is an arithmetic number, because the mean of its divisors is an integer number (2117436).

Almost surely, 2^16382121 is an apocalyptic number.

It is an amenable number.

16382121 is a deficient number, since it is larger than the sum of its proper divisors (9027111).

16382121 is a wasteful number, since it uses less digits than its factorization.

16382121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111460 (or 111453 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 16382121 is about 4047.4832921212. The cubic root of 16382121 is about 253.9744585473.

The spelling of 16382121 in words is "sixteen million, three hundred eighty-two thousand, one hundred twenty-one".