201845087 has 2 divisors, whose sum is σ = 201845088. Its totient is φ = 201845086.

The previous prime is 201845081. The next prime is 201845089. The reversal of 201845087 is 780548102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201845087 - 2⁶ = 201845023 is a prime.

Together with 201845089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201845081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100922543 + 100922544.

It is an arithmetic number, because the mean of its divisors is an integer number (100922544).

Almost surely, 2^201845087 is an apocalyptic number.

201845087 is a deficient number, since it is larger than the sum of its proper divisors (1).

201845087 is an equidigital number, since it uses as much as digits as its factorization.

201845087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 201845087 is about 14207.2195379673. The cubic root of 201845087 is about 586.5964013140.

The spelling of 201845087 in words is "two hundred one million, eight hundred forty-five thousand, eighty-seven".