201550243 has 2 divisors, whose sum is σ = 201550244. Its totient is φ = 201550242.

The previous prime is 201550213. The next prime is 201550273. The reversal of 201550243 is 342055102.

It is a balanced prime because it is at equal distance from previous prime (201550213) and next prime (201550273).

It is a cyclic number.

It is not a de Polignac number, because 201550243 - 2⁹ = 201549731 is a prime.

It is not a weakly prime, because it can be changed into another prime (201550213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100775121 + 100775122.

It is an arithmetic number, because the mean of its divisors is an integer number (100775122).

Almost surely, 2^201550243 is an apocalyptic number.

201550243 is a deficient number, since it is larger than the sum of its proper divisors (1).

201550243 is an equidigital number, since it uses as much as digits as its factorization.

201550243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 201550243 is about 14196.8391904677. The cubic root of 201550243 is about 586.3106397359.

The spelling of 201550243 in words is "two hundred one million, five hundred fifty thousand, two hundred forty-three".