131243147 has 8 divisors (see below), whose sum is σ = 152451552. Its totient is φ = 110649600.

The previous prime is 131243141. The next prime is 131243153. The reversal of 131243147 is 741342131.

It is an interprime number because it is at equal distance from previous prime (131243141) and next prime (131243153).

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 131243147 - 2²² = 127048843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131243141) 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, 153254 + ... + 154107.

It is an arithmetic number, because the mean of its divisors is an integer number (19056444).

Almost surely, 2^131243147 is an apocalyptic number.

131243147 is a deficient number, since it is larger than the sum of its proper divisors (21208405).

131243147 is an equidigital number, since it uses as much as digits as its factorization.

131243147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307429.

The product of its digits is 2016, while the sum is 26.

The square root of 131243147 is about 11456.1401440450. The cubic root of 131243147 is about 508.1893333465.

Adding to 131243147 its reverse (741342131), we get a palindrome (872585278).

The spelling of 131243147 in words is "one hundred thirty-one million, two hundred forty-three thousand, one hundred forty-seven".