131040556 has 12 divisors (see below), whose sum is σ = 242810568. Its totient is φ = 61666112.

The previous prime is 131040541. The next prime is 131040557. The reversal of 131040556 is 655040131.

It is a self number, because there is not a number n which added to its sum of digits gives 131040556.

It is not an unprimeable number, because it can be changed into a prime (131040557) 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, 963466 + ... + 963601.

It is an arithmetic number, because the mean of its divisors is an integer number (20234214).

Almost surely, 2^131040556 is an apocalyptic number.

It is an amenable number.

131040556 is a deficient number, since it is larger than the sum of its proper divisors (111770012).

131040556 is a wasteful number, since it uses less digits than its factorization.

131040556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927088 (or 1927086 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 131040556 is about 11447.2947022430. The cubic root of 131040556 is about 507.9277130697.

Adding to 131040556 its reverse (655040131), we get a palindrome (786080687).

The spelling of 131040556 in words is "one hundred thirty-one million, forty thousand, five hundred fifty-six".