201471487 has 6 divisors (see below), whose sum is σ = 234364848. Its totient is φ = 172689804.

The previous prime is 201471463. The next prime is 201471493. The reversal of 201471487 is 784174102.

It is not a de Polignac number, because 201471487 - 2¹⁹ = 200947199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201471887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2055783 + ... + 2055880.

It is an arithmetic number, because the mean of its divisors is an integer number (39060808).

Almost surely, 2^201471487 is an apocalyptic number.

201471487 is a deficient number, since it is larger than the sum of its proper divisors (32893361).

201471487 is an equidigital number, since it uses as much as digits as its factorization.

201471487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111677 (or 4111670 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 201471487 is about 14194.0652034574. The cubic root of 201471487 is about 586.2342625908.

The spelling of 201471487 in words is "two hundred one million, four hundred seventy-one thousand, four hundred eighty-seven".