1146409 has 8 divisors (see below), whose sum is σ = 1265760. Its totient is φ = 1029600.

The previous prime is 1146407. The next prime is 1146413. The reversal of 1146409 is 9046411.

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

It is not a de Polignac number, because 1146409 - 2¹ = 1146407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1146407) 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 7 ways as a sum of consecutive naturals, for example, 394 + ... + 1564.

It is an arithmetic number, because the mean of its divisors is an integer number (158220).

2^1146409 is an apocalyptic number.

It is an amenable number.

1146409 is a deficient number, since it is larger than the sum of its proper divisors (119351).

1146409 is a wasteful number, since it uses less digits than its factorization.

1146409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1146409 is about 1070.7049079929. The cubic root of 1146409 is about 104.6597907952.

The spelling of 1146409 in words is "one million, one hundred forty-six thousand, four hundred nine".