131284716 has 12 divisors (see below), whose sum is σ = 306331032. Its totient is φ = 43761568.

The previous prime is 131284709. The next prime is 131284717. The reversal of 131284716 is 617482131.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (131284717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5470185 + ... + 5470208.

It is an arithmetic number, because the mean of its divisors is an integer number (25527586).

Almost surely, 2^131284716 is an apocalyptic number.

It is an amenable number.

131284716 is an abundant number, since it is smaller than the sum of its proper divisors (175046316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131284716 is a wasteful number, since it uses less digits than its factorization.

131284716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10940400 (or 10940398 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 131284716 is about 11457.9542676693. The cubic root of 131284716 is about 508.2429810809.

The spelling of 131284716 in words is "one hundred thirty-one million, two hundred eighty-four thousand, seven hundred sixteen".