131550503 has 8 divisors (see below), whose sum is σ = 154407072. Its totient is φ = 109709856.

The previous prime is 131550491. The next prime is 131550553. The reversal of 131550503 is 305055131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131550503 - 2¹⁰ = 131549479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131550553) 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 7 ways as a sum of consecutive naturals, for example, 253700 + ... + 254217.

It is an arithmetic number, because the mean of its divisors is an integer number (19300884).

Almost surely, 2^131550503 is an apocalyptic number.

131550503 is a deficient number, since it is larger than the sum of its proper divisors (22856569).

131550503 is an equidigital number, since it uses as much as digits as its factorization.

131550503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507961.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 131550503 is about 11469.5467652388. The cubic root of 131550503 is about 508.5857305999.

The spelling of 131550503 in words is "one hundred thirty-one million, five hundred fifty thousand, five hundred three".