131441021 has 8 divisors (see below), whose sum is σ = 141886080. Its totient is φ = 121390192.

The previous prime is 131440997. The next prime is 131441027. The reversal of 131441021 is 120144131.

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 a de Polignac number, because none of the positive numbers 2^k-131441021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131441027) 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, 97865 + ... + 99198.

It is an arithmetic number, because the mean of its divisors is an integer number (17735760).

Almost surely, 2^131441021 is an apocalyptic number.

It is an amenable number.

131441021 is a deficient number, since it is larger than the sum of its proper divisors (10445059).

131441021 is a wasteful number, since it uses less digits than its factorization.

131441021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197115.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 131441021 is about 11464.7730461619. The cubic root of 131441021 is about 508.4446024513. Note that the first 3 decimals are identical.

Adding to 131441021 its reverse (120144131), we get a palindrome (251585152).

The spelling of 131441021 in words is "one hundred thirty-one million, four hundred forty-one thousand, twenty-one".