131288223 has 8 divisors (see below), whose sum is σ = 190964736. Its totient is φ = 79568600.

The previous prime is 131288207. The next prime is 131288231. The reversal of 131288223 is 322882131.

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 131288223 - 2⁴ = 131288207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131288293) 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 7 ways as a sum of consecutive naturals, for example, 1989183 + ... + 1989248.

It is an arithmetic number, because the mean of its divisors is an integer number (23870592).

Almost surely, 2^131288223 is an apocalyptic number.

131288223 is a deficient number, since it is larger than the sum of its proper divisors (59676513).

131288223 is a wasteful number, since it uses less digits than its factorization.

131288223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978445.

The product of its digits is 4608, while the sum is 30.

The square root of 131288223 is about 11458.1073044373. The cubic root of 131288223 is about 508.2475065944.

The spelling of 131288223 in words is "one hundred thirty-one million, two hundred eighty-eight thousand, two hundred twenty-three".