131502500 has 60 divisors (see below), whose sum is σ = 300203904. Its totient is φ = 50292000.

The previous prime is 131502499. The next prime is 131502509. The reversal of 131502500 is 5205131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131502509) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56357 + ... + 58643.

Almost surely, 2^131502500 is an apocalyptic number.

131502500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131502500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150101952).

131502500 is an abundant number, since it is smaller than the sum of its proper divisors (168701404).

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

131502500 is a wasteful number, since it uses less digits than its factorization.

131502500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334 (or 2317 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 131502500 is about 11467.4539458417. The cubic root of 131502500 is about 508.5238618109.

Adding to 131502500 its reverse (5205131), we get a palindrome (136707631).

The spelling of 131502500 in words is "one hundred thirty-one million, five hundred two thousand, five hundred".