131030536 has 64 divisors (see below), whose sum is σ = 318326400. Its totient is φ = 49102848.

The previous prime is 131030531. The next prime is 131030551. The reversal of 131030536 is 635030131.

It is not an unprimeable number, because it can be changed into a prime (131030531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9096 + ... + 18568.

It is an arithmetic number, because the mean of its divisors is an integer number (4973850).

Almost surely, 2^131030536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131030536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159163200).

131030536 is an abundant number, since it is smaller than the sum of its proper divisors (187295864).

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

131030536 is a wasteful number, since it uses less digits than its factorization.

131030536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9518 (or 9514 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 131030536 is about 11446.8570358854. The cubic root of 131030536 is about 507.9147665297.

Adding to 131030536 its reverse (635030131), we get a palindrome (766060667).

The spelling of 131030536 in words is "one hundred thirty-one million, thirty thousand, five hundred thirty-six".