147191378 has 16 divisors (see below), whose sum is σ = 226748160. Its totient is φ = 71635200.

The previous prime is 147191377. The next prime is 147191393. The reversal of 147191378 is 873191741.

147191378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (147191377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4658 + ... + 17778.

It is an arithmetic number, because the mean of its divisors is an integer number (14171760).

Almost surely, 2^147191378 is an apocalyptic number.

147191378 is a deficient number, since it is larger than the sum of its proper divisors (79556782).

147191378 is a wasteful number, since it uses less digits than its factorization.

147191378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13273.

The product of its digits is 42336, while the sum is 41.

The square root of 147191378 is about 12132.2453816266. The cubic root of 147191378 is about 527.9921395562.

The spelling of 147191378 in words is "one hundred forty-seven million, one hundred ninety-one thousand, three hundred seventy-eight".