131645041 has 8 divisors (see below), whose sum is σ = 143715744. Its totient is φ = 119591520.

The previous prime is 131645039. The next prime is 131645051. The reversal of 131645041 is 140546131.

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 131645041 - 2¹ = 131645039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131644997 and 131645015.

It is not an unprimeable number, because it can be changed into a prime (131645011) 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, 15870 + ... + 22696.

It is an arithmetic number, because the mean of its divisors is an integer number (17964468).

Almost surely, 2^131645041 is an apocalyptic number.

131645041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131645041 is a deficient number, since it is larger than the sum of its proper divisors (12070703).

131645041 is a wasteful number, since it uses less digits than its factorization.

131645041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 131645041 is about 11473.6672864433. The cubic root of 131645041 is about 508.7075321480.

The spelling of 131645041 in words is "one hundred thirty-one million, six hundred forty-five thousand, forty-one".