171061487 has 2 divisors, whose sum is σ = 171061488. Its totient is φ = 171061486.

The previous prime is 171061483. The next prime is 171061489. The reversal of 171061487 is 784160171.

171061487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (784160171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 171061487 - 2² = 171061483 is a prime.

Together with 171061489, 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 (171061483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85530743 + 85530744.

It is an arithmetic number, because the mean of its divisors is an integer number (85530744).

Almost surely, 2^171061487 is an apocalyptic number.

171061487 is a deficient number, since it is larger than the sum of its proper divisors (1).

171061487 is an equidigital number, since it uses as much as digits as its factorization.

171061487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 171061487 is about 13079.0476335244. The cubic root of 171061487 is about 555.1164293245.

The spelling of 171061487 in words is "one hundred seventy-one million, sixty-one thousand, four hundred eighty-seven".