1457539 has 4 divisors (see below), whose sum is σ = 1459960. Its totient is φ = 1455120.

The previous prime is 1457513. The next prime is 1457551. The reversal of 1457539 is 9357541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1457539 - 2⁷ = 1457411 is a prime.

It is a Duffinian number.

1457539 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1457039) 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, 484 + ... + 1774.

It is an arithmetic number, because the mean of its divisors is an integer number (364990).

2^1457539 is an apocalyptic number.

1457539 is a deficient number, since it is larger than the sum of its proper divisors (2421).

1457539 is a wasteful number, since it uses less digits than its factorization.

1457539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420.

The product of its digits is 18900, while the sum is 34.

The square root of 1457539 is about 1207.2857988066. The cubic root of 1457539 is about 113.3809421278.

The spelling of 1457539 in words is "one million, four hundred fifty-seven thousand, five hundred thirty-nine".