1089134943 has 16 divisors (see below), whose sum is σ = 1564846080. Its totient is φ = 669825504.

The previous prime is 1089134927. The next prime is 1089134983. The reversal of 1089134943 is 3494319801.

1089134943 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1089134943 - 2⁴ = 1089134927 is a prime.

It is a super-2 number, since 2×1089134943² = 2372429848127226498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1089134895 and 1089134904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089134983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63438 + ... + 78756.

It is an arithmetic number, because the mean of its divisors is an integer number (97802880).

Almost surely, 2^1089134943 is an apocalyptic number.

1089134943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1089134943 is a deficient number, since it is larger than the sum of its proper divisors (475711137).

1089134943 is a wasteful number, since it uses less digits than its factorization.

1089134943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17158.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1089134943 is about 33002.0445275743. The cubic root of 1089134943 is about 1028.8701416440.

The spelling of 1089134943 in words is "one billion, eighty-nine million, one hundred thirty-four thousand, nine hundred forty-three".