20151162 has 48 divisors (see below), whose sum is σ = 45527040. Its totient is φ = 6435936.

The previous prime is 20151127. The next prime is 20151169. The reversal of 20151162 is 26115102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20151169) 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, 52423 + ... + 52805.

It is an arithmetic number, because the mean of its divisors is an integer number (948480).

Almost surely, 2^20151162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20151162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22763520).

20151162 is an abundant number, since it is smaller than the sum of its proper divisors (25375878).

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

20151162 is a wasteful number, since it uses less digits than its factorization.

20151162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 20151162 is about 4489.0045667163. The cubic root of 20151162 is about 272.1239072864.

Adding to 20151162 its reverse (26115102), we get a palindrome (46266264).

The spelling of 20151162 in words is "twenty million, one hundred fifty-one thousand, one hundred sixty-two".