21132162 has 24 divisors (see below), whose sum is σ = 45879600. Its totient is φ = 7029720.

The previous prime is 21132131. The next prime is 21132191. The reversal of 21132162 is 26123112.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11589 + ... + 13287.

It is an arithmetic number, because the mean of its divisors is an integer number (1911650).

Almost surely, 2^21132162 is an apocalyptic number.

21132162 is an abundant number, since it is smaller than the sum of its proper divisors (24747438).

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

21132162 is a wasteful number, since it uses less digits than its factorization.

21132162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2395 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 21132162 is about 4596.9731345745. The cubic root of 21132162 is about 276.4699774581.

Adding to 21132162 its reverse (26123112), we get a palindrome (47255274).

The spelling of 21132162 in words is "twenty-one million, one hundred thirty-two thousand, one hundred sixty-two".