1089465144 has 32 divisors (see below), whose sum is σ = 2724587520. Its totient is φ = 363031776.

The previous prime is 1089465133. The next prime is 1089465239. The reversal of 1089465144 is 4415649801.

It is a junction number, because it is equal to n+sod(n) for n = 1089465096 and 1089465105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89487 + ... + 100929.

It is an arithmetic number, because the mean of its divisors is an integer number (85143360).

Almost surely, 2^1089465144 is an apocalyptic number.

It is an amenable number.

1089465144 is an abundant number, since it is smaller than the sum of its proper divisors (1635122376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1089465144 is a wasteful number, since it uses less digits than its factorization.

1089465144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15419 (or 15415 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1089465144 is about 33007.0468839610. The cubic root of 1089465144 is about 1028.9741078313.

The spelling of 1089465144 in words is "one billion, eighty-nine million, four hundred sixty-five thousand, one hundred forty-four".