1457985 has 24 divisors (see below), whose sum is σ = 2431296. Its totient is φ = 745920.

The previous prime is 1457983. The next prime is 1457999. The reversal of 1457985 is 5897541.

It is not a de Polignac number, because 1457985 - 2¹ = 1457983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1457983) 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 23 ways as a sum of consecutive naturals, for example, 20500 + ... + 20570.

It is an arithmetic number, because the mean of its divisors is an integer number (101304).

2^1457985 is an apocalyptic number.

1457985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1457985 is a deficient number, since it is larger than the sum of its proper divisors (973311).

1457985 is an equidigital number, since it uses as much as digits as its factorization.

1457985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 116 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 1457985 is about 1207.4704965340. The cubic root of 1457985 is about 113.3925056247.

It can be divided in two parts, 1457 and 985, that added together give a palindrome (2442).

The spelling of 1457985 in words is "one million, four hundred fifty-seven thousand, nine hundred eighty-five".