1152118261 has 16 divisors (see below), whose sum is σ = 1338336000. Its totient is φ = 971422848.

The previous prime is 1152118259. The next prime is 1152118273. The reversal of 1152118261 is 1628112511.

It is a cyclic number.

It is not a de Polignac number, because 1152118261 - 2¹ = 1152118259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152118241) 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, 119331 + ... + 128623.

It is an arithmetic number, because the mean of its divisors is an integer number (83646000).

Almost surely, 2^1152118261 is an apocalyptic number.

It is an amenable number.

1152118261 is a deficient number, since it is larger than the sum of its proper divisors (186217739).

1152118261 is an equidigital number, since it uses as much as digits as its factorization.

1152118261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9588.

The product of its digits is 960, while the sum is 28.

The square root of 1152118261 is about 33942.8676013091. The cubic root of 1152118261 is about 1048.3324281573.

The spelling of 1152118261 in words is "one billion, one hundred fifty-two million, one hundred eighteen thousand, two hundred sixty-one".