131440653 has 12 divisors (see below), whose sum is σ = 198113760. Its totient is φ = 83817096.

The previous prime is 131440643. The next prime is 131440703. The reversal of 131440653 is 356044131.

131440653 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 4 + 0 + 653 = 666.

It is not a de Polignac number, because 131440653 - 2²⁰ = 130392077 is a prime.

It is a super-2 number, since 2×131440653² = 34553290522132818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131440633) 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 11 ways as a sum of consecutive naturals, for example, 317283 + ... + 317696.

It is an arithmetic number, because the mean of its divisors is an integer number (16509480).

Almost surely, 2^131440653 is an apocalyptic number.

It is an amenable number.

131440653 is a deficient number, since it is larger than the sum of its proper divisors (66673107).

131440653 is a wasteful number, since it uses less digits than its factorization.

131440653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635008 (or 635005 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 131440653 is about 11464.7569969886. The cubic root of 131440653 is about 508.4441279475. Note that the first 3 decimals are identical.

Adding to 131440653 its reverse (356044131), we get a palindrome (487484784).

The spelling of 131440653 in words is "one hundred thirty-one million, four hundred forty thousand, six hundred fifty-three".