131534864 has 10 divisors (see below), whose sum is σ = 254848830. Its totient is φ = 65767424.

The previous prime is 131534863. The next prime is 131534867. The reversal of 131534864 is 468435131.

It can be written as a sum of positive squares in only one way, i.e., 130142464 + 1392400 = 11408^2 + 1180^2 .

It is not an unprimeable number, because it can be changed into a prime (131534863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4110449 + ... + 4110480.

It is an arithmetic number, because the mean of its divisors is an integer number (25484883).

Almost surely, 2^131534864 is an apocalyptic number.

It is an amenable number.

131534864 is a deficient number, since it is larger than the sum of its proper divisors (123313966).

131534864 is an equidigital number, since it uses as much as digits as its factorization.

131534864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8220937 (or 8220931 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 131534864 is about 11468.8649830748. The cubic root of 131534864 is about 508.5655758881.

Adding to 131534864 its reverse (468435131), we get a palindrome (599969995).

The spelling of 131534864 in words is "one hundred thirty-one million, five hundred thirty-four thousand, eight hundred sixty-four".