20003134 has 4 divisors (see below), whose sum is σ = 30004704. Its totient is φ = 10001566.

The previous prime is 20003131. The next prime is 20003149. The reversal of 20003134 is 43130002.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000782 + ... + 5000785.

It is an arithmetic number, because the mean of its divisors is an integer number (7501176).

Almost surely, 2^20003134 is an apocalyptic number.

20003134 is a deficient number, since it is larger than the sum of its proper divisors (10001570).

20003134 is a wasteful number, since it uses less digits than its factorization.

20003134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001569.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20003134 is about 4472.4863331261. The cubic root of 20003134 is about 271.4559392270.

Adding to 20003134 its reverse (43130002), we get a palindrome (63133136).

The spelling of 20003134 in words is "twenty million, three thousand, one hundred thirty-four".