131440124 has 48 divisors (see below), whose sum is σ = 262434816. Its totient is φ = 57235200.

The previous prime is 131440117. The next prime is 131440139. The reversal of 131440124 is 421044131.

It is a junction number, because it is equal to n+sod(n) for n = 131440096 and 131440105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47129 + ... + 49839.

It is an arithmetic number, because the mean of its divisors is an integer number (5467392).

Almost surely, 2^131440124 is an apocalyptic number.

It is an amenable number.

131440124 is a deficient number, since it is larger than the sum of its proper divisors (130994692).

131440124 is a wasteful number, since it uses less digits than its factorization.

131440124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786 (or 2784 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 131440124 is about 11464.7339262627. The cubic root of 131440124 is about 508.4434458468.

Adding to 131440124 its reverse (421044131), we get a palindrome (552484255).

The spelling of 131440124 in words is "one hundred thirty-one million, four hundred forty thousand, one hundred twenty-four".