131884985 has 16 divisors (see below), whose sum is σ = 168946560. Its totient is φ = 98542080.

The previous prime is 131884981. The next prime is 131885021. The reversal of 131884985 is 589488131.

It is not a de Polignac number, because 131884985 - 2² = 131884981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131884981) 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, 3032 + ... + 16521.

It is an arithmetic number, because the mean of its divisors is an integer number (10559160).

Almost surely, 2^131884985 is an apocalyptic number.

It is an amenable number.

131884985 is a deficient number, since it is larger than the sum of its proper divisors (37061575).

131884985 is a wasteful number, since it uses less digits than its factorization.

131884985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19648.

The product of its digits is 276480, while the sum is 47.

The square root of 131884985 is about 11484.1188168705. The cubic root of 131884985 is about 509.0164113266.

The spelling of 131884985 in words is "one hundred thirty-one million, eight hundred eighty-four thousand, nine hundred eighty-five".