21160150 has 48 divisors (see below), whose sum is σ = 43568640. Its totient is φ = 7581600.

The previous prime is 21160123. The next prime is 21160151. The reversal of 21160150 is 5106112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21160151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43207 + ... + 43693.

It is an arithmetic number, because the mean of its divisors is an integer number (907680).

Almost surely, 2^21160150 is an apocalyptic number.

21160150 is an abundant number, since it is smaller than the sum of its proper divisors (22408490).

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

21160150 is a wasteful number, since it uses less digits than its factorization.

21160150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 21160150 is about 4600.0163043189. The cubic root of 21160150 is about 276.5919783553.

Adding to 21160150 its reverse (5106112), we get a palindrome (26266262).

The spelling of 21160150 in words is "twenty-one million, one hundred sixty thousand, one hundred fifty".