1197518378 has 8 divisors (see below), whose sum is σ = 2052888672. Its totient is φ = 513222156.

The previous prime is 1197518359. The next prime is 1197518393. The reversal of 1197518378 is 8738157911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42768500 + ... + 42768527.

It is an arithmetic number, because the mean of its divisors is an integer number (256611084).

Almost surely, 2^1197518378 is an apocalyptic number.

1197518378 is a deficient number, since it is larger than the sum of its proper divisors (855370294).

1197518378 is an equidigital number, since it uses as much as digits as its factorization.

1197518378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85537036.

The product of its digits is 423360, while the sum is 50.

The square root of 1197518378 is about 34605.1784853077. The cubic root of 1197518378 is about 1061.9255311704.

The spelling of 1197518378 in words is "one billion, one hundred ninety-seven million, five hundred eighteen thousand, three hundred seventy-eight".