20167136 has 96 divisors (see below), whose sum is σ = 47029248. Its totient is φ = 8419840.

The previous prime is 20167127. The next prime is 20167139. The reversal of 20167136 is 63176102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20167139) 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 15 ways as a sum of consecutive naturals, for example, 380486 + ... + 380538.

It is an arithmetic number, because the mean of its divisors is an integer number (489888).

Almost surely, 2^20167136 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 20167136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23514624).

20167136 is an abundant number, since it is smaller than the sum of its proper divisors (26862112).

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

20167136 is a wasteful number, since it uses less digits than its factorization.

20167136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20167136 is about 4490.7834505796. The cubic root of 20167136 is about 272.1957932847.

Multiplying 20167136 by its sum of digits (26), we get a triangular number (524345536 = T₃₂₃₈₃).

The spelling of 20167136 in words is "twenty million, one hundred sixty-seven thousand, one hundred thirty-six".