133118078 has 4 divisors (see below), whose sum is σ = 199677120. Its totient is φ = 66559038.

The previous prime is 133118077. The next prime is 133118087. The reversal of 133118078 is 870811331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870811331 = 13 ⋅66985487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133118071) by changing a digit.

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 as a sum of consecutive naturals, namely, 33279518 + ... + 33279521.

It is an arithmetic number, because the mean of its divisors is an integer number (49919280).

Almost surely, 2^133118078 is an apocalyptic number.

133118078 is a deficient number, since it is larger than the sum of its proper divisors (66559042).

133118078 is an equidigital number, since it uses as much as digits as its factorization.

133118078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66559041.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 133118078 is about 11537.6807894828. The cubic root of 133118078 is about 510.5978865305.

The spelling of 133118078 in words is "one hundred thirty-three million, one hundred eighteen thousand, seventy-eight".