1162861049 has 16 divisors (see below), whose sum is σ = 1366197888. Its totient is φ = 968879232.

The previous prime is 1162861003. The next prime is 1162861061. The reversal of 1162861049 is 9401682611.

It is a cyclic number.

It is not a de Polignac number, because 1162861049 - 2²⁴ = 1146083833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1162861079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494294 + ... + 496640.

It is an arithmetic number, because the mean of its divisors is an integer number (85387368).

Almost surely, 2^1162861049 is an apocalyptic number.

It is an amenable number.

1162861049 is a deficient number, since it is larger than the sum of its proper divisors (203336839).

1162861049 is a wasteful number, since it uses less digits than its factorization.

1162861049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1162861049 is about 34100.7485108465. The cubic root of 1162861049 is about 1051.5807027645.

The spelling of 1162861049 in words is "one billion, one hundred sixty-two million, eight hundred sixty-one thousand, forty-nine".