131454140 has 12 divisors (see below), whose sum is σ = 276053736. Its totient is φ = 52581648.

The previous prime is 131454137. The next prime is 131454161. The reversal of 131454140 is 41454131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3286334 + ... + 3286373.

It is an arithmetic number, because the mean of its divisors is an integer number (23004478).

Almost surely, 2^131454140 is an apocalyptic number.

131454140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131454140 is an abundant number, since it is smaller than the sum of its proper divisors (144599596).

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

131454140 is a wasteful number, since it uses less digits than its factorization.

131454140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572716 (or 6572714 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 131454140 is about 11465.3451757895. The cubic root of 131454140 is about 508.4615176751.

Subtracting from 131454140 its reverse (41454131), we obtain a palindrome (90000009).

The spelling of 131454140 in words is "one hundred thirty-one million, four hundred fifty-four thousand, one hundred forty".