131442241 has 8 divisors (see below), whose sum is σ = 154280000. Its totient is φ = 109619568.

The previous prime is 131442197. The next prime is 131442253. The reversal of 131442241 is 142244131.

It is a happy number.

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 131442241 - 2¹³ = 131434049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131442281) 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, 253491 + ... + 254008.

It is an arithmetic number, because the mean of its divisors is an integer number (19285000).

Almost surely, 2^131442241 is an apocalyptic number.

It is an amenable number.

131442241 is a deficient number, since it is larger than the sum of its proper divisors (22837759).

131442241 is an equidigital number, since it uses as much as digits as its factorization.

131442241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507543.

The product of its digits is 768, while the sum is 22.

The square root of 131442241 is about 11464.8262524994. The cubic root of 131442241 is about 508.4461755282.

Adding to 131442241 its reverse (142244131), we get a palindrome (273686372).

The spelling of 131442241 in words is "one hundred thirty-one million, four hundred forty-two thousand, two hundred forty-one".