16262121 has 8 divisors (see below), whose sum is σ = 21702880. Its totient is φ = 10831392.

The previous prime is 16262093. The next prime is 16262161. The reversal of 16262121 is 12126261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16262121 - 2⁵ = 16262089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16262161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3021 + ... + 6453.

It is an arithmetic number, because the mean of its divisors is an integer number (2712860).

Almost surely, 2^16262121 is an apocalyptic number.

It is an amenable number.

16262121 is a deficient number, since it is larger than the sum of its proper divisors (5440759).

16262121 is a wasteful number, since it uses less digits than its factorization.

16262121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015.

The product of its digits is 288, while the sum is 21.

The square root of 16262121 is about 4032.6320189177. The cubic root of 16262121 is about 253.3528122526.

Adding to 16262121 its reverse (12126261), we get a palindrome (28388382).

The spelling of 16262121 in words is "sixteen million, two hundred sixty-two thousand, one hundred twenty-one".