131404040 has 32 divisors (see below), whose sum is σ = 305199360. Its totient is φ = 50865600.

The previous prime is 131403977. The next prime is 131404069. The reversal of 131404040 is 40404131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51746 + ... + 54225.

It is an arithmetic number, because the mean of its divisors is an integer number (9537480).

Almost surely, 2^131404040 is an apocalyptic number.

131404040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131404040 is an abundant number, since it is smaller than the sum of its proper divisors (173795320).

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

131404040 is a wasteful number, since it uses less digits than its factorization.

131404040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106013 (or 106009 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 131404040 is about 11463.1601227585. The cubic root of 131404040 is about 508.3969142604.

Adding to 131404040 its reverse (40404131), we get a palindrome (171808171).

Subtracting from 131404040 its reverse (40404131), we obtain a palindrome (90999909).

The spelling of 131404040 in words is "one hundred thirty-one million, four hundred four thousand, forty".