131328242 has 8 divisors (see below), whose sum is σ = 200221932. Its totient is φ = 64587600.

The previous prime is 131328233. The next prime is 131328251. The reversal of 131328242 is 242823131.

It is an interprime number because it is at equal distance from previous prime (131328233) and next prime (131328251).

It can be written as a sum of positive squares in 2 ways, for example, as 126315121 + 5013121 = 11239^2 + 2239^2 .

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

It is an unprimeable number.

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, 538109 + ... + 538352.

Almost surely, 2^131328242 is an apocalyptic number.

131328242 is a deficient number, since it is larger than the sum of its proper divisors (68893690).

131328242 is a wasteful number, since it uses less digits than its factorization.

131328242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076524.

The product of its digits is 2304, while the sum is 26.

The square root of 131328242 is about 11459.8534894649. The cubic root of 131328242 is about 508.2991423269.

The spelling of 131328242 in words is "one hundred thirty-one million, three hundred twenty-eight thousand, two hundred forty-two".