131092728 has 64 divisors (see below), whose sum is σ = 356983200. Its totient is φ = 39874560.

The previous prime is 131092693. The next prime is 131092747. The reversal of 131092728 is 827290131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25408 + ... + 30128.

Almost surely, 2^131092728 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 131092728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178491600).

131092728 is an abundant number, since it is smaller than the sum of its proper divisors (225890472).

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

131092728 is a wasteful number, since it uses less digits than its factorization.

131092728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832 (or 4828 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 131092728 is about 11449.5732671572. The cubic root of 131092728 is about 507.9951122765.

The spelling of 131092728 in words is "one hundred thirty-one million, ninety-two thousand, seven hundred twenty-eight".