21071162 has 8 divisors (see below), whose sum is σ = 36122016. Its totient is φ = 9030492.

The previous prime is 21071137. The next prime is 21071179. The reversal of 21071162 is 26117012.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752528 + ... + 752555.

It is an arithmetic number, because the mean of its divisors is an integer number (4515252).

Almost surely, 2^21071162 is an apocalyptic number.

21071162 is a deficient number, since it is larger than the sum of its proper divisors (15050854).

21071162 is a wasteful number, since it uses less digits than its factorization.

21071162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505092.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 21071162 is about 4590.3335390797. Note that the first 3 decimals coincide. The cubic root of 21071162 is about 276.2037021024.

Adding to 21071162 its reverse (26117012), we get a palindrome (47188174).

The spelling of 21071162 in words is "twenty-one million, seventy-one thousand, one hundred sixty-two".