489771131 has 16 divisors (see below), whose sum is σ = 520563456. Its totient is φ = 459846816.

The previous prime is 489771103. The next prime is 489771133. The reversal of 489771131 is 131177984.

It is a cyclic number.

It is not a de Polignac number, because 489771131 - 2¹⁰ = 489770107 is a prime.

It is a super-2 number, since 2×489771131² = 479751521522038322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489771133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329516 + ... + 330998.

It is an arithmetic number, because the mean of its divisors is an integer number (32535216).

Almost surely, 2^489771131 is an apocalyptic number.

489771131 is a deficient number, since it is larger than the sum of its proper divisors (30792325).

489771131 is a wasteful number, since it uses less digits than its factorization.

489771131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762.

The product of its digits is 42336, while the sum is 41.

The square root of 489771131 is about 22130.7733936254. The cubic root of 489771131 is about 788.2507528017.

The spelling of 489771131 in words is "four hundred eighty-nine million, seven hundred seventy-one thousand, one hundred thirty-one".