1457009 has 4 divisors (see below), whose sum is σ = 1459620. Its totient is φ = 1454400.

The previous prime is 1456963. The next prime is 1457011. The reversal of 1457009 is 9007541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 739600 + 717409 = 860^2 + 847^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457009 - 2²⁰ = 408433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1457039) 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, 92 + ... + 1709.

It is an arithmetic number, because the mean of its divisors is an integer number (364905).

2^1457009 is an apocalyptic number.

It is an amenable number.

1457009 is a deficient number, since it is larger than the sum of its proper divisors (2611).

1457009 is an equidigital number, since it uses as much as digits as its factorization.

1457009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1457009 is about 1207.0662782134. The cubic root of 1457009 is about 113.3671976849.

The spelling of 1457009 in words is "one million, four hundred fifty-seven thousand, nine".