1054209 has 8 divisors (see below), whose sum is σ = 1513792. Its totient is φ = 648720.

The previous prime is 1054201. The next prime is 1054213. The reversal of 1054209 is 9024501.

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

It is not a de Polignac number, because 1054209 - 2³ = 1054201 is a prime.

It is a super-2 number, since 2×1054209² = 2222713231362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1054201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13477 + ... + 13554.

It is an arithmetic number, because the mean of its divisors is an integer number (189224).

2^1054209 is an apocalyptic number.

It is an amenable number.

1054209 is a deficient number, since it is larger than the sum of its proper divisors (459583).

1054209 is a wasteful number, since it uses less digits than its factorization.

1054209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27047.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1054209 is about 1026.7468042317. The cubic root of 1054209 is about 101.7752645298.

The spelling of 1054209 in words is "one million, fifty-four thousand, two hundred nine".