1152026289 has 6 divisors (see below), whose sum is σ = 1664037986. Its totient is φ = 768017520.

The previous prime is 1152026273. The next prime is 1152026303. The reversal of 1152026289 is 9826202511.

1152026289 is a `hidden beast` number, since 1 + 1 + 5 + 20 + 2 + 628 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1105895025 + 46131264 = 33255^2 + 6792^2 .

It is not a de Polignac number, because 1152026289 - 2⁴ = 1152026273 is a prime.

It is a super-2 number, since 2×1152026289² = 2654329141094223042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152026209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64001452 + ... + 64001469.

Almost surely, 2^1152026289 is an apocalyptic number.

It is an amenable number.

1152026289 is a deficient number, since it is larger than the sum of its proper divisors (512011697).

1152026289 is a wasteful number, since it uses less digits than its factorization.

1152026289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128002927 (or 128002924 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1152026289 is about 33941.5127682901. The cubic root of 1152026289 is about 1048.3045317746.

The spelling of 1152026289 in words is "one billion, one hundred fifty-two million, twenty-six thousand, two hundred eighty-nine".