1194272851 has 2 divisors, whose sum is σ = 1194272852. Its totient is φ = 1194272850.

The previous prime is 1194272843. The next prime is 1194272879. The reversal of 1194272851 is 1582724911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1194272851 - 2³ = 1194272843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1194272351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 597136425 + 597136426.

It is an arithmetic number, because the mean of its divisors is an integer number (597136426).

Almost surely, 2^1194272851 is an apocalyptic number.

1194272851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1194272851 is an equidigital number, since it uses as much as digits as its factorization.

1194272851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 40.

The square root of 1194272851 is about 34558.2530085072. The cubic root of 1194272851 is about 1060.9653159089.

The spelling of 1194272851 in words is "one billion, one hundred ninety-four million, two hundred seventy-two thousand, eight hundred fifty-one".