16172136 has 112 divisors (see below), whose sum is σ = 47217600. Its totient is φ = 5186592.

The previous prime is 16172119. The next prime is 16172141. The reversal of 16172136 is 63127161.

16172136 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 274075 + ... + 274133.

Almost surely, 2^16172136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16172136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23608800).

16172136 is an abundant number, since it is smaller than the sum of its proper divisors (31045464).

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

16172136 is an equidigital number, since it uses as much as digits as its factorization.

16172136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 111 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 16172136 is about 4021.4594365727. The cubic root of 16172136 is about 252.8846459188.

Adding to 16172136 its reverse (63127161), we get a palindrome (79299297).

The spelling of 16172136 in words is "sixteen million, one hundred seventy-two thousand, one hundred thirty-six".