21054162 has 8 divisors (see below), whose sum is σ = 42108336. Its totient is φ = 7018052.

The previous prime is 21054119. The next prime is 21054169. The reversal of 21054162 is 26145012.

It is a sphenic number, since it is the product of 3 distinct primes.

21054162 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21054169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754508 + ... + 1754519.

It is an arithmetic number, because the mean of its divisors is an integer number (5263542).

Almost surely, 2^21054162 is an apocalyptic number.

21054162 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21054162 is a wasteful number, since it uses less digits than its factorization.

21054162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509032.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 21054162 is about 4588.4814481482. The cubic root of 21054162 is about 276.1294026681.

Adding to 21054162 its reverse (26145012), we get a palindrome (47199174).

The spelling of 21054162 in words is "twenty-one million, fifty-four thousand, one hundred sixty-two".