131888473 has 4 divisors (see below), whose sum is σ = 132102160. Its totient is φ = 131674788.

The previous prime is 131888459. The next prime is 131888479. The reversal of 131888473 is 374888131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131888473 - 2⁵ = 131888441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131888479) 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 3 ways as a sum of consecutive naturals, for example, 105915 + ... + 107152.

It is an arithmetic number, because the mean of its divisors is an integer number (33025540).

Almost surely, 2^131888473 is an apocalyptic number.

It is an amenable number.

131888473 is a deficient number, since it is larger than the sum of its proper divisors (213687).

131888473 is an equidigital number, since it uses as much as digits as its factorization.

131888473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213686.

The product of its digits is 129024, while the sum is 43.

The square root of 131888473 is about 11484.2706777575. The cubic root of 131888473 is about 509.0208986547.

The spelling of 131888473 in words is "one hundred thirty-one million, eight hundred eighty-eight thousand, four hundred seventy-three".