21136010 has 16 divisors (see below), whose sum is σ = 43479936. Its totient is φ = 7246608.

The previous prime is 21136007. The next prime is 21136039. The reversal of 21136010 is 1063112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150902 + ... + 151041.

It is an arithmetic number, because the mean of its divisors is an integer number (2717496).

Almost surely, 2^21136010 is an apocalyptic number.

21136010 is an abundant number, since it is smaller than the sum of its proper divisors (22343926).

21136010 is a wasteful number, since it uses less digits than its factorization.

21136010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301957.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 21136010 is about 4597.3916517956. The cubic root of 21136010 is about 276.4867574403.

Adding to 21136010 its reverse (1063112), we get a palindrome (22199122).

The spelling of 21136010 in words is "twenty-one million, one hundred thirty-six thousand, ten".