131284484 has 6 divisors (see below), whose sum is σ = 229747854. Its totient is φ = 65642240.

The previous prime is 131284481. The next prime is 131284487. The reversal of 131284484 is 484482131.

It is an interprime number because it is at equal distance from previous prime (131284481) and next prime (131284487).

It can be written as a sum of positive squares in only one way, i.e., 88774084 + 42510400 = 9422^2 + 6520^2 .

It is not an unprimeable number, because it can be changed into a prime (131284481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16410557 + ... + 16410564.

It is an arithmetic number, because the mean of its divisors is an integer number (38291309).

Almost surely, 2^131284484 is an apocalyptic number.

It is an amenable number.

131284484 is a deficient number, since it is larger than the sum of its proper divisors (98463370).

131284484 is a wasteful number, since it uses less digits than its factorization.

131284484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32821125 (or 32821123 counting only the distinct ones).

The product of its digits is 24576, while the sum is 35.

The square root of 131284484 is about 11457.9441436935. The cubic root of 131284484 is about 508.2426816999.

The spelling of 131284484 in words is "one hundred thirty-one million, two hundred eighty-four thousand, four hundred eighty-four".