1121977394 has 8 divisors (see below), whose sum is σ = 1711491120. Its totient is φ = 551480356.

The previous prime is 1121977361. The next prime is 1121977397. The reversal of 1121977394 is 4937791211.

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

It is not an unprimeable number, because it can be changed into a prime (1121977397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4754024 + ... + 4754259.

It is an arithmetic number, because the mean of its divisors is an integer number (213936390).

Almost surely, 2^1121977394 is an apocalyptic number.

1121977394 is a deficient number, since it is larger than the sum of its proper divisors (589513726).

1121977394 is an equidigital number, since it uses as much as digits as its factorization.

1121977394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508344.

The product of its digits is 95256, while the sum is 44.

The square root of 1121977394 is about 33495.9310066163. The cubic root of 1121977394 is about 1039.1096281090.

The spelling of 1121977394 in words is "one billion, one hundred twenty-one million, nine hundred seventy-seven thousand, three hundred ninety-four".