131503493 has 8 divisors (see below), whose sum is σ = 143713920. Its totient is φ = 119335680.

The previous prime is 131503481. The next prime is 131503553. The reversal of 131503493 is 394305131.

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 131503493 - 2¹² = 131499397 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 (131503453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4013 + ... + 16706.

It is an arithmetic number, because the mean of its divisors is an integer number (17964240).

Almost surely, 2^131503493 is an apocalyptic number.

It is an amenable number.

131503493 is a deficient number, since it is larger than the sum of its proper divisors (12210427).

131503493 is a wasteful number, since it uses less digits than its factorization.

131503493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21307.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 131503493 is about 11467.4972422059. The cubic root of 131503493 is about 508.5251417940.

The spelling of 131503493 in words is "one hundred thirty-one million, five hundred three thousand, four hundred ninety-three".