1121849207 has 2 divisors, whose sum is σ = 1121849208. Its totient is φ = 1121849206.

The previous prime is 1121849189. The next prime is 1121849249. The reversal of 1121849207 is 7029481211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121849207 - 2¹⁶ = 1121783671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121840207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560924603 + 560924604.

It is an arithmetic number, because the mean of its divisors is an integer number (560924604).

Almost surely, 2^1121849207 is an apocalyptic number.

1121849207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121849207 is an equidigital number, since it uses as much as digits as its factorization.

1121849207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1121849207 is about 33494.0174807383. The cubic root of 1121849207 is about 1039.0700535092.

The spelling of 1121849207 in words is "one billion, one hundred twenty-one million, eight hundred forty-nine thousand, two hundred seven".