131235503 has 8 divisors (see below), whose sum is σ = 150288000. Its totient is φ = 112259160.

The previous prime is 131235499. The next prime is 131235521. The reversal of 131235503 is 305532131.

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 131235503 - 2² = 131235499 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 (131235593) 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, 15293 + ... + 22278.

It is an arithmetic number, because the mean of its divisors is an integer number (18786000).

Almost surely, 2^131235503 is an apocalyptic number.

131235503 is a deficient number, since it is larger than the sum of its proper divisors (19052497).

131235503 is an equidigital number, since it uses as much as digits as its factorization.

131235503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38077.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 131235503 is about 11455.8065189667. The cubic root of 131235503 is about 508.1794669909.

Adding to 131235503 its reverse (305532131), we get a palindrome (436767634).

The spelling of 131235503 in words is "one hundred thirty-one million, two hundred thirty-five thousand, five hundred three".