131333487 has 8 divisors (see below), whose sum is σ = 175180080. Its totient is φ = 87521280.

The previous prime is 131333443. The next prime is 131333507. The reversal of 131333487 is 784333131.

It is a happy number.

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

It is not a de Polignac number, because 131333487 - 2⁸ = 131333231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131333407) 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, 2287 + ... + 16367.

It is an arithmetic number, because the mean of its divisors is an integer number (21897510).

Almost surely, 2^131333487 is an apocalyptic number.

131333487 is a deficient number, since it is larger than the sum of its proper divisors (43846593).

131333487 is a wasteful number, since it uses less digits than its factorization.

131333487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17193.

The product of its digits is 18144, while the sum is 33.

The square root of 131333487 is about 11460.0823295472. The cubic root of 131333487 is about 508.3059090702.

The spelling of 131333487 in words is "one hundred thirty-one million, three hundred thirty-three thousand, four hundred eighty-seven".