1064945409 has 8 divisors (see below), whose sum is σ = 1549011552. Its totient is φ = 645421440.

The previous prime is 1064945407. The next prime is 1064945423. The reversal of 1064945409 is 9045494601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1064945409 - 2¹ = 1064945407 is a prime.

It is a super-2 number, since 2×1064945409² = 2268217448300354562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1064945407) by changing a digit.

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, 16135504 + ... + 16135569.

It is an arithmetic number, because the mean of its divisors is an integer number (193626444).

Almost surely, 2^1064945409 is an apocalyptic number.

It is an amenable number.

1064945409 is a deficient number, since it is larger than the sum of its proper divisors (484066143).

1064945409 is a wasteful number, since it uses less digits than its factorization.

1064945409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32271087.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1064945409 is about 32633.5013291556. The cubic root of 1064945409 is about 1021.1960239782.

The spelling of 1064945409 in words is "one billion, sixty-four million, nine hundred forty-five thousand, four hundred nine".