131550763 has 4 divisors (see below), whose sum is σ = 135794368. Its totient is φ = 127307160.

The previous prime is 131550751. The next prime is 131550773. The reversal of 131550763 is 367055131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131550763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 4243573 = 131550763 / (1 + 3 + 1 + 5 + 5 + 0 + 7 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131550733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121756 + ... + 2121817.

It is an arithmetic number, because the mean of its divisors is an integer number (33948592).

Almost surely, 2^131550763 is an apocalyptic number.

131550763 is a deficient number, since it is larger than the sum of its proper divisors (4243605).

131550763 is an equidigital number, since it uses as much as digits as its factorization.

131550763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243604.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 131550763 is about 11469.5580995956. The cubic root of 131550763 is about 508.5860656606.

The spelling of 131550763 in words is "one hundred thirty-one million, five hundred fifty thousand, seven hundred sixty-three".