1194042851 has 2 divisors, whose sum is σ = 1194042852. Its totient is φ = 1194042850.

The previous prime is 1194042833. The next prime is 1194042887. The reversal of 1194042851 is 1582404911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1194042851 - 2²⁶ = 1126933987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1194041851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 597021425 + 597021426.

It is an arithmetic number, because the mean of its divisors is an integer number (597021426).

Almost surely, 2^1194042851 is an apocalyptic number.

1194042851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1194042851 is an equidigital number, since it uses as much as digits as its factorization.

1194042851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1194042851 is about 34554.9251337635. The cubic root of 1194042851 is about 1060.8972025826.

The spelling of 1194042851 in words is "one billion, one hundred ninety-four million, forty-two thousand, eight hundred fifty-one".