1264089 has 16 divisors (see below), whose sum is σ = 1806080. Its totient is φ = 784080.

The previous prime is 1264063. The next prime is 1264129. The reversal of 1264089 is 9804621.

It is not a de Polignac number, because 1264089 - 2⁷ = 1263961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3654 + ... + 3984.

It is an arithmetic number, because the mean of its divisors is an integer number (112880).

2^1264089 is an apocalyptic number.

1264089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1264089 is a deficient number, since it is larger than the sum of its proper divisors (541991).

1264089 is a wasteful number, since it uses less digits than its factorization.

1264089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1264089 is about 1124.3171260814. The cubic root of 1264089 is about 108.1249411384.

The spelling of 1264089 in words is "one million, two hundred sixty-four thousand, eighty-nine".