20203150 has 48 divisors (see below), whose sum is σ = 41492880. Its totient is φ = 7257600.

The previous prime is 20203133. The next prime is 20203151. The reversal of 20203150 is 5130202.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 20203150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203151) 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, 59782 + ... + 60118.

It is an arithmetic number, because the mean of its divisors is an integer number (864435).

Almost surely, 2^20203150 is an apocalyptic number.

20203150 is an abundant number, since it is smaller than the sum of its proper divisors (21289730).

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

20203150 is a wasteful number, since it uses less digits than its factorization.

20203150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20203150 is about 4494.7914300888. The cubic root of 20203150 is about 272.3577238937.

Adding to 20203150 its reverse (5130202), we get a palindrome (25333352).

The spelling of 20203150 in words is "twenty million, two hundred three thousand, one hundred fifty".