1194298561 has 16 divisors (see below), whose sum is σ = 1307880000. Its totient is φ = 1086232896.

The previous prime is 1194298549. The next prime is 1194298579. The reversal of 1194298561 is 1658924911.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1194298561 - 2²⁹ = 657427649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1194298531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92575 + ... + 104683.

It is an arithmetic number, because the mean of its divisors is an integer number (81742500).

Almost surely, 2^1194298561 is an apocalyptic number.

It is an amenable number.

1194298561 is a deficient number, since it is larger than the sum of its proper divisors (113581439).

1194298561 is a wasteful number, since it uses less digits than its factorization.

1194298561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12336.

The product of its digits is 155520, while the sum is 46.

The square root of 1194298561 is about 34558.6249871143. The cubic root of 1194298561 is about 1060.9729292508.

The spelling of 1194298561 in words is "one billion, one hundred ninety-four million, two hundred ninety-eight thousand, five hundred sixty-one".