1457545 has 4 divisors (see below), whose sum is σ = 1749060. Its totient is φ = 1166032.

The previous prime is 1457513. The next prime is 1457551. The reversal of 1457545 is 5457541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5457541 = 19 ⋅287239.

It can be written as a sum of positive squares in 2 ways, for example, as 915849 + 541696 = 957^2 + 736^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457545 - 2⁵ = 1457513 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 145750 + ... + 145759.

It is an arithmetic number, because the mean of its divisors is an integer number (437265).

2^1457545 is an apocalyptic number.

It is an amenable number.

1457545 is a deficient number, since it is larger than the sum of its proper divisors (291515).

1457545 is an equidigital number, since it uses as much as digits as its factorization.

1457545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291514.

The product of its digits is 14000, while the sum is 31.

The square root of 1457545 is about 1207.2882837169. The cubic root of 1457545 is about 113.3810977062.

It can be divided in two parts, 1457 and 545, that added together give a palindrome (2002).

The spelling of 1457545 in words is "one million, four hundred fifty-seven thousand, five hundred forty-five".