131256466 has 16 divisors (see below), whose sum is σ = 215159040. Its totient is φ = 59557680.

The previous prime is 131256443. The next prime is 131256467. The reversal of 131256466 is 664652131.

It is not an unprimeable number, because it can be changed into a prime (131256467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8440 + ... + 18268.

It is an arithmetic number, because the mean of its divisors is an integer number (13447440).

Almost surely, 2^131256466 is an apocalyptic number.

131256466 is a deficient number, since it is larger than the sum of its proper divisors (83902574).

131256466 is a wasteful number, since it uses less digits than its factorization.

131256466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10449.

The product of its digits is 25920, while the sum is 34.

The square root of 131256466 is about 11456.7214332897. The cubic root of 131256466 is about 508.2065236911.

It can be divided in two parts, 13125 and 6466, that added together give a palindrome (19591).

The spelling of 131256466 in words is "one hundred thirty-one million, two hundred fifty-six thousand, four hundred sixty-six".