16919133 has 16 divisors (see below), whose sum is σ = 28125696. Its totient is φ = 8789040.

The previous prime is 16919129. The next prime is 16919141. The reversal of 16919133 is 33191961.

It is a happy number.

It is not a de Polignac number, because 16919133 - 2² = 16919129 is a prime.

It is a super-2 number, since 2×16919133² = 572514122943378, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 16919094 and 16919103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16919113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36391 + ... + 36852.

It is an arithmetic number, because the mean of its divisors is an integer number (1757856).

Almost surely, 2^16919133 is an apocalyptic number.

It is an amenable number.

16919133 is a deficient number, since it is larger than the sum of its proper divisors (11206563).

16919133 is a wasteful number, since it uses less digits than its factorization.

16919133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73264.

The product of its digits is 4374, while the sum is 33.

The square root of 16919133 is about 4113.2873714342. The cubic root of 16919133 is about 256.7198014092.

The spelling of 16919133 in words is "sixteen million, nine hundred nineteen thousand, one hundred thirty-three".