487161 has 8 divisors (see below), whose sum is σ = 721760. Its totient is φ = 324756.

The previous prime is 487133. The next prime is 487177. The reversal of 487161 is 161784.

It is a happy number.

It is not a de Polignac number, because 487161 - 2¹¹ = 485113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 18043 = 487161 / (4 + 8 + 7 + 1 + 6 + 1).

It is a Duffinian number.

487161 is a lucky number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (487111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8995 + ... + 9048.

It is an arithmetic number, because the mean of its divisors is an integer number (90220).

2⁴⁸⁷¹⁶¹ is an apocalyptic number.

It is an amenable number.

487161 is a deficient number, since it is larger than the sum of its proper divisors (234599).

487161 is a wasteful number, since it uses less digits than its factorization.

487161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18052 (or 18046 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 487161 is about 697.9691970281. The cubic root of 487161 is about 78.6847986389.

The spelling of 487161 in words is "four hundred eighty-seven thousand, one hundred sixty-one".