1457457 has 4 divisors (see below), whose sum is σ = 1943280. Its totient is φ = 971636.

The previous prime is 1457437. The next prime is 1457459. The reversal of 1457457 is 7547541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1457457 - 2⁸ = 1457201 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1457459) 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 3 ways as a sum of consecutive naturals, for example, 242907 + ... + 242912.

It is an arithmetic number, because the mean of its divisors is an integer number (485820).

2^1457457 is an apocalyptic number.

It is an amenable number.

1457457 is a deficient number, since it is larger than the sum of its proper divisors (485823).

1457457 is an equidigital number, since it uses as much as digits as its factorization.

1457457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485822.

The product of its digits is 19600, while the sum is 33.

The square root of 1457457 is about 1207.2518378532. The cubic root of 1457457 is about 113.3788158470.

The spelling of 1457457 in words is "one million, four hundred fifty-seven thousand, four hundred fifty-seven".