1161362259 has 16 divisors (see below), whose sum is σ = 1821745440. Its totient is φ = 728697600.

The previous prime is 1161362239. The next prime is 1161362263. The reversal of 1161362259 is 9522631611.

1161362259 is a `hidden beast` number, since 1 + 16 + 13 + 622 + 5 + 9 = 666.

It is not a de Polignac number, because 1161362259 - 2⁷ = 1161362131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1161362239) 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 in 15 ways as a sum of consecutive naturals, for example, 1264642 + ... + 1265559.

It is an arithmetic number, because the mean of its divisors is an integer number (113859090).

Almost surely, 2^1161362259 is an apocalyptic number.

1161362259 is a deficient number, since it is larger than the sum of its proper divisors (660383181).

1161362259 is a wasteful number, since it uses less digits than its factorization.

1161362259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530227 (or 2530221 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1161362259 is about 34078.7655146133. The cubic root of 1161362259 is about 1051.1287209154.

The spelling of 1161362259 in words is "one billion, one hundred sixty-one million, three hundred sixty-two thousand, two hundred fifty-nine".