16133004 has 18 divisors (see below), whose sum is σ = 40780740. Its totient is φ = 5377656.

The previous prime is 16133003. The next prime is 16133011. The reversal of 16133004 is 40033161.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (16133003) 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 5 ways as a sum of consecutive naturals, for example, 224034 + ... + 224105.

Almost surely, 2^16133004 is an apocalyptic number.

It is an amenable number.

16133004 is an abundant number, since it is smaller than the sum of its proper divisors (24647736).

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

16133004 is a wasteful number, since it uses less digits than its factorization.

16133004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448149 (or 448144 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 16133004 is about 4016.5910919585. The cubic root of 16133004 is about 252.6805113824.

Adding to 16133004 its reverse (40033161), we get a palindrome (56166165).

The spelling of 16133004 in words is "sixteen million, one hundred thirty-three thousand, four".