131900247 has 12 divisors (see below), whose sum is σ = 190654360. Its totient is φ = 87872688.

The previous prime is 131900191. The next prime is 131900281. The reversal of 131900247 is 742009131.

It is not a de Polignac number, because 131900247 - 2⁶ = 131900183 is a prime.

It is a super-2 number, since 2×131900247² = 34795350317322018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131900247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131900347) 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 11 ways as a sum of consecutive naturals, for example, 11529 + ... + 19917.

Almost surely, 2^131900247 is an apocalyptic number.

131900247 is a deficient number, since it is larger than the sum of its proper divisors (58754113).

131900247 is a wasteful number, since it uses less digits than its factorization.

131900247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10142 (or 10139 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 131900247 is about 11484.7832804977. The cubic root of 131900247 is about 509.0360453757.

Adding to 131900247 its reverse (742009131), we get a palindrome (873909378).

The spelling of 131900247 in words is "one hundred thirty-one million, nine hundred thousand, two hundred forty-seven".