131769841 has 4 divisors (see below), whose sum is σ = 150594112. Its totient is φ = 112945572.

The previous prime is 131769797. The next prime is 131769853. The reversal of 131769841 is 148967131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131769841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131769794 and 131769803.

It is not an unprimeable number, because it can be changed into a prime (131769241) 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 3 ways as a sum of consecutive naturals, for example, 9412125 + ... + 9412138.

It is an arithmetic number, because the mean of its divisors is an integer number (37648528).

Almost surely, 2^131769841 is an apocalyptic number.

It is an amenable number.

131769841 is a deficient number, since it is larger than the sum of its proper divisors (18824271).

131769841 is an equidigital number, since it uses as much as digits as its factorization.

131769841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18824270.

The product of its digits is 36288, while the sum is 40.

The square root of 131769841 is about 11479.1045382469. The cubic root of 131769841 is about 508.8682336025.

It can be divided in two parts, 131769 and 841, that multiplied together give a square (110817729 = 10527²).

The spelling of 131769841 in words is "one hundred thirty-one million, seven hundred sixty-nine thousand, eight hundred forty-one".