1129033385 has 4 divisors (see below), whose sum is σ = 1354840068. Its totient is φ = 903226704.

The previous prime is 1129033379. The next prime is 1129033397. The reversal of 1129033385 is 5833309211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5833309211 = 4229 ⋅1379359.

It can be written as a sum of positive squares in 2 ways, for example, as 519338521 + 609694864 = 22789^2 + 24692^2 .

It is a cyclic number.

It is not a de Polignac number, because 1129033385 - 2¹² = 1129029289 is a prime.

It is a super-3 number, since 3×1129033385³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112903334 + ... + 112903343.

It is an arithmetic number, because the mean of its divisors is an integer number (338710017).

Almost surely, 2^1129033385 is an apocalyptic number.

It is an amenable number.

1129033385 is a deficient number, since it is larger than the sum of its proper divisors (225806683).

1129033385 is an equidigital number, since it uses as much as digits as its factorization.

1129033385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225806682.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1129033385 is about 33601.0920209448. The cubic root of 1129033385 is about 1041.2833592862.

The spelling of 1129033385 in words is "one billion, one hundred twenty-nine million, thirty-three thousand, three hundred eighty-five".