21363150 has 24 divisors (see below), whose sum is σ = 52980984. Its totient is φ = 5696800.

The previous prime is 21363149. The next prime is 21363161. The reversal of 21363150 is 5136312.

It is a congruent number.

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, 71061 + ... + 71360.

It is an arithmetic number, because the mean of its divisors is an integer number (2207541).

Almost surely, 2^21363150 is an apocalyptic number.

21363150 is an abundant number, since it is smaller than the sum of its proper divisors (31617834).

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

21363150 is a wasteful number, since it uses less digits than its factorization.

21363150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142436 (or 142431 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 21363150 is about 4622.0287753323. The cubic root of 21363150 is about 277.4736603520.

Adding to 21363150 its reverse (5136312), we get a palindrome (26499462).

The spelling of 21363150 in words is "twenty-one million, three hundred sixty-three thousand, one hundred fifty".