243475201 has 2 divisors, whose sum is σ = 243475202. Its totient is φ = 243475200.

The previous prime is 243475187. The next prime is 243475223. The reversal of 243475201 is 102574342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240994576 + 2480625 = 15524^2 + 1575^2 .

It is a cyclic number.

It is not a de Polignac number, because 243475201 - 2¹³ = 243467009 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243475201.

It is not a weakly prime, because it can be changed into another prime (243475301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121737600 + 121737601.

It is an arithmetic number, because the mean of its divisors is an integer number (121737601).

Almost surely, 2^243475201 is an apocalyptic number.

It is an amenable number.

243475201 is a deficient number, since it is larger than the sum of its proper divisors (1).

243475201 is an equidigital number, since it uses as much as digits as its factorization.

243475201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 243475201 is about 15603.6919028799. The cubic root of 243475201 is about 624.4316548507.

The spelling of 243475201 in words is "two hundred forty-three million, four hundred seventy-five thousand, two hundred one".