131546720 has 24 divisors (see below), whose sum is σ = 310779504. Its totient is φ = 52618624.

The previous prime is 131546719. The next prime is 131546773. The reversal of 131546720 is 27645131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410924 + ... + 411243.

It is an arithmetic number, because the mean of its divisors is an integer number (12949146).

Almost surely, 2^131546720 is an apocalyptic number.

131546720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131546720 is an abundant number, since it is smaller than the sum of its proper divisors (179232784).

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

131546720 is an equidigital number, since it uses as much as digits as its factorization.

131546720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822182 (or 822174 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 131546720 is about 11469.3818490797. The cubic root of 131546720 is about 508.5808554171.

The spelling of 131546720 in words is "one hundred thirty-one million, five hundred forty-six thousand, seven hundred twenty".