1128865535 has 32 divisors (see below), whose sum is σ = 1652244480. Its totient is φ = 722760192.

The previous prime is 1128865489. The next prime is 1128865537. The reversal of 1128865535 is 5355688211.

It is not a de Polignac number, because 1128865535 - 2¹⁶ = 1128799999 is a prime.

It is a super-2 number, since 2×1128865535² = 2548674792221672450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128865537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68096 + ... + 83034.

It is an arithmetic number, because the mean of its divisors is an integer number (51632640).

Almost surely, 2^1128865535 is an apocalyptic number.

1128865535 is a deficient number, since it is larger than the sum of its proper divisors (523378945).

1128865535 is a wasteful number, since it uses less digits than its factorization.

1128865535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15095.

The product of its digits is 288000, while the sum is 44.

The square root of 1128865535 is about 33598.5942414262. The cubic root of 1128865535 is about 1041.2317552397.

The spelling of 1128865535 in words is "one billion, one hundred twenty-eight million, eight hundred sixty-five thousand, five hundred thirty-five".