1240225 has 24 divisors (see below), whose sum is σ = 1855040. Its totient is φ = 803520.

The previous prime is 1240219. The next prime is 1240231. The reversal of 1240225 is 5220421.

It is an interprime number because it is at equal distance from previous prime (1240219) and next prime (1240231).

It is not a de Polignac number, because 1240225 - 2⁵ = 1240193 is a prime.

It is a plaindrome in base 11 and base 13.

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1240199 and 1240208.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3139 + ... + 3511.

2^1240225 is an apocalyptic number.

It is an amenable number.

1240225 is a deficient number, since it is larger than the sum of its proper divisors (614815).

1240225 is a wasteful number, since it uses less digits than its factorization.

1240225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1240225 is about 1113.6538959659. The cubic root of 1240225 is about 107.4402047124.

Adding to 1240225 its reverse (5220421), we get a palindrome (6460646).

The spelling of 1240225 in words is "one million, two hundred forty thousand, two hundred twenty-five".