1420525 has 6 divisors (see below), whose sum is σ = 1761482. Its totient is φ = 1136400.

The previous prime is 1420519. The next prime is 1420561. The reversal of 1420525 is 5250241.

It can be written as a sum of positive squares in 3 ways, for example, as 49284 + 1371241 = 222^2 + 1171^2 .

It is not a de Polignac number, because 1420525 - 2⁵ = 1420493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28386 + ... + 28435.

2^1420525 is an apocalyptic number.

It is an amenable number.

1420525 is a deficient number, since it is larger than the sum of its proper divisors (340957).

1420525 is an equidigital number, since it uses as much as digits as its factorization.

1420525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56831 (or 56826 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1420525 is about 1191.8577935308. The cubic root of 1420525 is about 112.4129367548.

Adding to 1420525 its reverse (5250241), we get a palindrome (6670766).

The spelling of 1420525 in words is "one million, four hundred twenty thousand, five hundred twenty-five".