131045503 has 8 divisors (see below), whose sum is σ = 138903120. Its totient is φ = 123204480.

The previous prime is 131045477. The next prime is 131045531. The reversal of 131045503 is 305540131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131045503 is a prime.

It is a super-3 number, since 3×131045503³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131045543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14568 + ... + 21778.

It is an arithmetic number, because the mean of its divisors is an integer number (17362890).

Almost surely, 2^131045503 is an apocalyptic number.

131045503 is a deficient number, since it is larger than the sum of its proper divisors (7857617).

131045503 is a wasteful number, since it uses less digits than its factorization.

131045503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8297.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 131045503 is about 11447.5107774573. The cubic root of 131045503 is about 507.9341046960.

Adding to 131045503 its reverse (305540131), we get a palindrome (436585634).

The spelling of 131045503 in words is "one hundred thirty-one million, forty-five thousand, five hundred three".