201455249 has 2 divisors, whose sum is σ = 201455250. Its totient is φ = 201455248.

The previous prime is 201455231. The next prime is 201455297. The reversal of 201455249 is 942554102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196897024 + 4558225 = 14032^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 201455249 - 2²⁰ = 200406673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (201455209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100727624 + 100727625.

It is an arithmetic number, because the mean of its divisors is an integer number (100727625).

Almost surely, 2^201455249 is an apocalyptic number.

It is an amenable number.

201455249 is a deficient number, since it is larger than the sum of its proper divisors (1).

201455249 is an equidigital number, since it uses as much as digits as its factorization.

201455249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 201455249 is about 14193.4931923047. The cubic root of 201455249 is about 586.2185125909.

The spelling of 201455249 in words is "two hundred one million, four hundred fifty-five thousand, two hundred forty-nine".