131446378 has 16 divisors (see below), whose sum is σ = 225573120. Its totient is φ = 56275056.

The previous prime is 131446373. The next prime is 131446379. The reversal of 131446378 is 873644131.

It is not an unprimeable number, because it can be changed into a prime (131446373) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10575 + ... + 19357.

It is an arithmetic number, because the mean of its divisors is an integer number (14098320).

Almost surely, 2^131446378 is an apocalyptic number.

131446378 is a deficient number, since it is larger than the sum of its proper divisors (94126742).

131446378 is a wasteful number, since it uses less digits than its factorization.

131446378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9861.

The product of its digits is 48384, while the sum is 37.

The square root of 131446378 is about 11465.0066724795. The cubic root of 131446378 is about 508.4515097337.

The spelling of 131446378 in words is "one hundred thirty-one million, four hundred forty-six thousand, three hundred seventy-eight".