1135889471 has 4 divisors (see below), whose sum is σ = 1136302752. Its totient is φ = 1135476192.

The previous prime is 1135889449. The next prime is 1135889519. The reversal of 1135889471 is 1749885311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1749885311 = 2531 ⋅691381.

It is a cyclic number.

It is not a de Polignac number, because 1135889471 - 2¹⁰ = 1135888447 is a prime.

It is a super-3 number, since 3×1135889471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135882471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202490 + ... + 208023.

It is an arithmetic number, because the mean of its divisors is an integer number (284075688).

Almost surely, 2^1135889471 is an apocalyptic number.

1135889471 is a deficient number, since it is larger than the sum of its proper divisors (413281).

1135889471 is an equidigital number, since it uses as much as digits as its factorization.

1135889471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413280.

The product of its digits is 241920, while the sum is 47.

The square root of 1135889471 is about 33702.9593804461. The cubic root of 1135889471 is about 1043.3868477101.

The spelling of 1135889471 in words is "one billion, one hundred thirty-five million, eight hundred eighty-nine thousand, four hundred seventy-one".