201672503 has 4 divisors (see below), whose sum is σ = 202577088. Its totient is φ = 200767920.

The previous prime is 201672469. The next prime is 201672511. The reversal of 201672503 is 305276102.

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

It is a cyclic number.

It is not a de Polignac number, because 201672503 - 2⁶ = 201672439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201672103) 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 in 3 ways as a sum of consecutive naturals, for example, 451958 + ... + 452403.

It is an arithmetic number, because the mean of its divisors is an integer number (50644272).

Almost surely, 2^201672503 is an apocalyptic number.

201672503 is a deficient number, since it is larger than the sum of its proper divisors (904585).

201672503 is an equidigital number, since it uses as much as digits as its factorization.

201672503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904584.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 201672503 is about 14201.1444257144. The cubic root of 201672503 is about 586.4291674183.

The spelling of 201672503 in words is "two hundred one million, six hundred seventy-two thousand, five hundred three".