1054409 has 4 divisors (see below), whose sum is σ = 1056900. Its totient is φ = 1051920.

The previous prime is 1054393. The next prime is 1054423. The reversal of 1054409 is 9044501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9044501 = 877 ⋅10313.

It can be written as a sum of positive squares in 2 ways, for example, as 644809 + 409600 = 803^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054409 - 2⁴ = 1054393 is a prime.

It is a super-2 number, since 2×1054409² = 2223556678562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1054429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434 + ... + 1515.

It is an arithmetic number, because the mean of its divisors is an integer number (264225).

2^1054409 is an apocalyptic number.

It is an amenable number.

1054409 is a deficient number, since it is larger than the sum of its proper divisors (2491).

1054409 is an equidigital number, since it uses as much as digits as its factorization.

1054409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1054409 is about 1026.8441946079. The cubic root of 1054409 is about 101.7817002448.

The spelling of 1054409 in words is "one million, fifty-four thousand, four hundred nine".