131258247 has 16 divisors (see below), whose sum is σ = 181539840. Its totient is φ = 84268800.

The previous prime is 131258243. The next prime is 131258269. The reversal of 131258247 is 742852131.

It is not a de Polignac number, because 131258247 - 2² = 131258243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131258243) 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 15 ways as a sum of consecutive naturals, for example, 16279 + ... + 22967.

It is an arithmetic number, because the mean of its divisors is an integer number (11346240).

Almost surely, 2^131258247 is an apocalyptic number.

131258247 is a deficient number, since it is larger than the sum of its proper divisors (50281593).

131258247 is a wasteful number, since it uses less digits than its factorization.

131258247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6934.

The product of its digits is 13440, while the sum is 33.

The square root of 131258247 is about 11456.7991603240. The cubic root of 131258247 is about 508.2088222743.

The spelling of 131258247 in words is "one hundred thirty-one million, two hundred fifty-eight thousand, two hundred forty-seven".