201125004 has 12 divisors (see below), whose sum is σ = 469291704. Its totient is φ = 67041664.

The previous prime is 201124997. The next prime is 201125009. The reversal of 201125004 is 400521102.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (201125009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8380197 + ... + 8380220.

It is an arithmetic number, because the mean of its divisors is an integer number (39107642).

Almost surely, 2^201125004 is an apocalyptic number.

It is an amenable number.

201125004 is an abundant number, since it is smaller than the sum of its proper divisors (268166700).

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

201125004 is a wasteful number, since it uses less digits than its factorization.

201125004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16760424 (or 16760422 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 201125004 is about 14181.8547447081. The cubic root of 201125004 is about 585.8980086294.

Adding to 201125004 its reverse (400521102), we get a palindrome (601646106).

The spelling of 201125004 in words is "two hundred one million, one hundred twenty-five thousand, four".