201672749 has 2 divisors, whose sum is σ = 201672750. Its totient is φ = 201672748.

The previous prime is 201672733. The next prime is 201672787. The reversal of 201672749 is 947276102.

It is an a-pointer prime, because the next prime (201672787) can be obtained adding 201672749 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201498025 + 174724 = 14195^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 201672749 - 2⁴ = 201672733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201674749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100836374 + 100836375.

It is an arithmetic number, because the mean of its divisors is an integer number (100836375).

Almost surely, 2^201672749 is an apocalyptic number.

It is an amenable number.

201672749 is a deficient number, since it is larger than the sum of its proper divisors (1).

201672749 is an equidigital number, since it uses as much as digits as its factorization.

201672749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 201672749 is about 14201.1530869856. The cubic root of 201672749 is about 586.4294058602.

The spelling of 201672749 in words is "two hundred one million, six hundred seventy-two thousand, seven hundred forty-nine".