1192842649 has 2 divisors, whose sum is σ = 1192842650. Its totient is φ = 1192842648.

The previous prime is 1192842631. The next prime is 1192842719. The reversal of 1192842649 is 9462482911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 759994624 + 432848025 = 27568^2 + 20805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1192842649 - 2¹⁵ = 1192809881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1192842599 and 1192842608.

It is not a weakly prime, because it can be changed into another prime (1192842449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 596421324 + 596421325.

It is an arithmetic number, because the mean of its divisors is an integer number (596421325).

Almost surely, 2^1192842649 is an apocalyptic number.

It is an amenable number.

1192842649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1192842649 is an equidigital number, since it uses as much as digits as its factorization.

1192842649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 46.

The square root of 1192842649 is about 34537.5541838156. The cubic root of 1192842649 is about 1060.5416269008.

The spelling of 1192842649 in words is "one billion, one hundred ninety-two million, eight hundred forty-two thousand, six hundred forty-nine".