1089748039 has 2 divisors, whose sum is σ = 1089748040. Its totient is φ = 1089748038.

The previous prime is 1089748031. The next prime is 1089748069. The reversal of 1089748039 is 9308479801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1089748039 - 2³ = 1089748031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1089747983 and 1089748001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089748031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544874019 + 544874020.

It is an arithmetic number, because the mean of its divisors is an integer number (544874020).

Almost surely, 2^1089748039 is an apocalyptic number.

1089748039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089748039 is an equidigital number, since it uses as much as digits as its factorization.

1089748039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1089748039 is about 33011.3319785797. The cubic root of 1089748039 is about 1029.0631626732.

The spelling of 1089748039 in words is "one billion, eighty-nine million, seven hundred forty-eight thousand, thirty-nine".