21141752 has 32 divisors (see below), whose sum is σ = 41249280. Its totient is φ = 10147680.

The previous prime is 21141751. The next prime is 21141779. The reversal of 21141752 is 25714112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141751) 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 7 ways as a sum of consecutive naturals, for example, 40163 + ... + 40685.

It is an arithmetic number, because the mean of its divisors is an integer number (1289040).

Almost surely, 2^21141752 is an apocalyptic number.

It is an amenable number.

21141752 is a deficient number, since it is larger than the sum of its proper divisors (20107528).

21141752 is a wasteful number, since it uses less digits than its factorization.

21141752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 719 counting only the distinct ones).

The product of its digits is 560, while the sum is 23.

The square root of 21141752 is about 4598.0160939257. The cubic root of 21141752 is about 276.5117928059.

Adding to 21141752 its reverse (25714112), we get a palindrome (46855864).

It can be divided in two parts, 21 and 141752, that multiplied together give a palindrome (2976792).

The spelling of 21141752 in words is "twenty-one million, one hundred forty-one thousand, seven hundred fifty-two".