1400225 has 6 divisors (see below), whose sum is σ = 1736310. Its totient is φ = 1120160.

The previous prime is 1400197. The next prime is 1400249. The reversal of 1400225 is 5220041.

It can be written as a sum of positive squares in 3 ways, for example, as 351649 + 1048576 = 593^2 + 1024^2 .

It is not a de Polignac number, because 1400225 - 2¹⁰ = 1399201 is a prime.

It is a Curzon 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 5 ways as a sum of consecutive naturals, for example, 27980 + ... + 28029.

It is an arithmetic number, because the mean of its divisors is an integer number (289385).

2^1400225 is an apocalyptic number.

It is an amenable number.

1400225 is a deficient number, since it is larger than the sum of its proper divisors (336085).

1400225 is an equidigital number, since it uses as much as digits as its factorization.

1400225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56019 (or 56014 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1400225 is about 1183.3110326537. The cubic root of 1400225 is about 111.8748868636.

Adding to 1400225 its reverse (5220041), we get a palindrome (6620266).

The spelling of 1400225 in words is "one million, four hundred thousand, two hundred twenty-five".