1025218 has 4 divisors (see below), whose sum is σ = 1537830. Its totient is φ = 512608.

The previous prime is 1025209. The next prime is 1025231. The reversal of 1025218 is 8125201.

1025218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 751689 + 273529 = 867^2 + 523^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1025195 and 1025204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256303 + ... + 256306.

2^1025218 is an apocalyptic number.

1025218 is a deficient number, since it is larger than the sum of its proper divisors (512612).

1025218 is an equidigital number, since it uses as much as digits as its factorization.

1025218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512611.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1025218 is about 1012.5304933680. The cubic root of 1025218 is about 100.8336312781.

The spelling of 1025218 in words is "one million, twenty-five thousand, two hundred eighteen".