16133172 has 72 divisors (see below), whose sum is σ = 42542976. Its totient is φ = 4752000.

The previous prime is 16133171. The next prime is 16133177. The reversal of 16133172 is 27133161.

16133172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16133171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59397 + ... + 59667.

Almost surely, 2^16133172 is an apocalyptic number.

16133172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16133172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21271488).

16133172 is an abundant number, since it is smaller than the sum of its proper divisors (26409804).

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

16133172 is a wasteful number, since it uses less digits than its factorization.

16133172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 328 counting only the distinct ones).

The product of its digits is 756, while the sum is 24.

The square root of 16133172 is about 4016.6120051606. The cubic root of 16133172 is about 252.6813884701.

It can be divided in two parts, 161 and 33172, that added together give a palindrome (33333).

The spelling of 16133172 in words is "sixteen million, one hundred thirty-three thousand, one hundred seventy-two".