131500206 has 16 divisors (see below), whose sum is σ = 292222800. Its totient is φ = 43833384.

The previous prime is 131500199. The next prime is 131500211. The reversal of 131500206 is 602005131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217541 + ... + 1217648.

It is an arithmetic number, because the mean of its divisors is an integer number (18263925).

Almost surely, 2^131500206 is an apocalyptic number.

131500206 is an abundant number, since it is smaller than the sum of its proper divisors (160722594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131500206 is a wasteful number, since it uses less digits than its factorization.

131500206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435200 (or 2435194 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 131500206 is about 11467.3539232030. The cubic root of 131500206 is about 508.5209048062.

Adding to 131500206 its reverse (602005131), we get a palindrome (733505337).

The spelling of 131500206 in words is "one hundred thirty-one million, five hundred thousand, two hundred six".