16021134 has 12 divisors (see below), whose sum is σ = 34712496. Its totient is φ = 5340372.

The previous prime is 16021129. The next prime is 16021139. The reversal of 16021134 is 43112061.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16021129) and next prime (16021139).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 890063 = 16021134 / (1 + 6 + 0 + 2 + 1 + 1 + 3 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16021139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 445014 + ... + 445049.

It is an arithmetic number, because the mean of its divisors is an integer number (2892708).

Almost surely, 2^16021134 is an apocalyptic number.

16021134 is an abundant number, since it is smaller than the sum of its proper divisors (18691362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16021134 is a wasteful number, since it uses less digits than its factorization.

16021134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890071 (or 890068 counting only the distinct ones).

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

The square root of 16021134 is about 4002.6408782203. The cubic root of 16021134 is about 252.0951077137.

Adding to 16021134 its reverse (43112061), we get a palindrome (59133195).

The spelling of 16021134 in words is "sixteen million, twenty-one thousand, one hundred thirty-four".