131748390 has 64 divisors (see below), whose sum is σ = 355622400. Its totient is φ = 34703712.

The previous prime is 131748389. The next prime is 131748401. The reversal of 131748390 is 93847131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19471 + ... + 25349.

It is an arithmetic number, because the mean of its divisors is an integer number (5556600).

Almost surely, 2^131748390 is an apocalyptic number.

131748390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131748390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177811200).

131748390 is an abundant number, since it is smaller than the sum of its proper divisors (223874010).

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

131748390 is a wasteful number, since it uses less digits than its factorization.

131748390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5978 (or 5972 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 131748390 is about 11478.1701503332. The cubic root of 131748390 is about 508.8406189759.

The spelling of 131748390 in words is "one hundred thirty-one million, seven hundred forty-eight thousand, three hundred ninety".