131420141 has 4 divisors (see below), whose sum is σ = 135951900. Its totient is φ = 126888384.

The previous prime is 131420111. The next prime is 131420143. The reversal of 131420141 is 141024131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39816100 + 91604041 = 6310^2 + 9571^2 .

It is a cyclic number.

It is not a de Polignac number, because 131420141 - 2¹⁰ = 131419117 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 (131420143) 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 3 ways as a sum of consecutive naturals, for example, 2265836 + ... + 2265893.

It is an arithmetic number, because the mean of its divisors is an integer number (33987975).

Almost surely, 2^131420141 is an apocalyptic number.

It is an amenable number.

131420141 is a deficient number, since it is larger than the sum of its proper divisors (4531759).

131420141 is an equidigital number, since it uses as much as digits as its factorization.

131420141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531758.

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

The square root of 131420141 is about 11463.8623944986. The cubic root of 131420141 is about 508.4176781182.

Adding to 131420141 its reverse (141024131), we get a palindrome (272444272).

The spelling of 131420141 in words is "one hundred thirty-one million, four hundred twenty thousand, one hundred forty-one".