131840048 has 40 divisors (see below), whose sum is σ = 267840000. Its totient is φ = 62748224.

The previous prime is 131840039. The next prime is 131840081. The reversal of 131840048 is 840048131.

It is a self number, because there is not a number n which added to its sum of digits gives 131840048.

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, 87203 + ... + 88701.

It is an arithmetic number, because the mean of its divisors is an integer number (6696000).

Almost surely, 2^131840048 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 131840048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133920000).

131840048 is an abundant number, since it is smaller than the sum of its proper divisors (135999952).

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

131840048 is a wasteful number, since it uses less digits than its factorization.

131840048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769 (or 1763 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 131840048 is about 11482.1621657247. The cubic root of 131840048 is about 508.9585925919.

Adding to 131840048 its reverse (840048131), we get a palindrome (971888179).

The spelling of 131840048 in words is "one hundred thirty-one million, eight hundred forty thousand, forty-eight".