131573887 has 8 divisors (see below), whose sum is σ = 135386096. Its totient is φ = 127775232.

The previous prime is 131573881. The next prime is 131573891. The reversal of 131573887 is 788375131.

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 131573887 - 2⁷ = 131573759 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 (131573881) 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, 18268 + ... + 24430.

It is an arithmetic number, because the mean of its divisors is an integer number (16923262).

Almost surely, 2^131573887 is an apocalyptic number.

131573887 is a deficient number, since it is larger than the sum of its proper divisors (3812209).

131573887 is an equidigital number, since it uses as much as digits as its factorization.

131573887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6777.

The product of its digits is 141120, while the sum is 43.

The square root of 131573887 is about 11470.5661150616. The cubic root of 131573887 is about 508.6158636764.

The spelling of 131573887 in words is "one hundred thirty-one million, five hundred seventy-three thousand, eight hundred eighty-seven".