201481487 has 2 divisors, whose sum is σ = 201481488. Its totient is φ = 201481486.

The previous prime is 201481481. The next prime is 201481499. The reversal of 201481487 is 784184102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201481487 - 2²² = 197287183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201481481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100740743 + 100740744.

It is an arithmetic number, because the mean of its divisors is an integer number (100740744).

Almost surely, 2^201481487 is an apocalyptic number.

201481487 is a deficient number, since it is larger than the sum of its proper divisors (1).

201481487 is an equidigital number, since it uses as much as digits as its factorization.

201481487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 201481487 is about 14194.4174589872. The cubic root of 201481487 is about 586.2439616401.

The spelling of 201481487 in words is "two hundred one million, four hundred eighty-one thousand, four hundred eighty-seven".