131042078 has 4 divisors (see below), whose sum is σ = 196563120. Its totient is φ = 65521038.

The previous prime is 131042077. The next prime is 131042083. The reversal of 131042078 is 870240131.

131042078 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870240131 = 89 ⋅9777979.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131042071) 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 as a sum of consecutive naturals, namely, 32760518 + ... + 32760521.

It is an arithmetic number, because the mean of its divisors is an integer number (49140780).

Almost surely, 2^131042078 is an apocalyptic number.

131042078 is a deficient number, since it is larger than the sum of its proper divisors (65521042).

131042078 is an equidigital number, since it uses as much as digits as its factorization.

131042078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65521041.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 131042078 is about 11447.3611806390. The cubic root of 131042078 is about 507.9296795423.

The spelling of 131042078 in words is "one hundred thirty-one million, forty-two thousand, seventy-eight".