131740 has 24 divisors (see below), whose sum is σ = 316512. Its totient is φ = 45120.

The previous prime is 131731. The next prime is 131743. The reversal of 131740 is 47131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331 + ... + 610.

It is an arithmetic number, because the mean of its divisors is an integer number (13188).

2¹³¹⁷⁴⁰ is an apocalyptic number.

131740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131740 is an abundant number, since it is smaller than the sum of its proper divisors (184772).

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

131740 is a wasteful number, since it uses less digits than its factorization.

131740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 131740 is about 362.9600528984. The cubic root of 131740 is about 50.8829817418.

Multiplying 131740 by its product of nonzero digits (84), we get a triangular number (11066160 = T₄₇₀₄).

Adding to 131740 its reverse (47131), we get a palindrome (178871).

The spelling of 131740 in words is "one hundred thirty-one thousand, seven hundred forty".