16134021 has 12 divisors (see below), whose sum is σ = 24531520. Its totient is φ = 10189800.

The previous prime is 16134011. The next prime is 16134031. The reversal of 16134021 is 12043161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16134011) and next prime (16134031).

It is not a de Polignac number, because 16134021 - 2⁷ = 16133893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16133985 and 16134003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16134011) 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, 47005 + ... + 47346.

Almost surely, 2^16134021 is an apocalyptic number.

It is an amenable number.

16134021 is a deficient number, since it is larger than the sum of its proper divisors (8397499).

16134021 is a wasteful number, since it uses less digits than its factorization.

16134021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94376 (or 94373 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 16134021 is about 4016.7176898557. The cubic root of 16134021 is about 252.6858208023.

Adding to 16134021 its reverse (12043161), we get a palindrome (28177182).

The spelling of 16134021 in words is "sixteen million, one hundred thirty-four thousand, twenty-one".