20654150 has 72 divisors (see below), whose sum is σ = 45338616. Its totient is φ = 6918400.

The previous prime is 20654143. The next prime is 20654171. The reversal of 20654150 is 5145602.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 439427 + ... + 439473.

It is an arithmetic number, because the mean of its divisors is an integer number (629703).

Almost surely, 2^20654150 is an apocalyptic number.

20654150 is an abundant number, since it is smaller than the sum of its proper divisors (24684466).

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

20654150 is a wasteful number, since it uses less digits than its factorization.

20654150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 20654150 is about 4544.6837073662. The cubic root of 20654150 is about 274.3694644684.

Adding to 20654150 its reverse (5145602), we get a palindrome (25799752).

The spelling of 20654150 in words is "twenty million, six hundred fifty-four thousand, one hundred fifty".