1210825 has 48 divisors (see below), whose sum is σ = 2035584. Its totient is φ = 691200.

The previous prime is 1210819. The next prime is 1210831. The reversal of 1210825 is 5280121.

It is an interprime number because it is at equal distance from previous prime (1210819) and next prime (1210831).

It is not a de Polignac number, because 1210825 - 2³ = 1210817 is a prime.

It is a Duffinian 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 47 ways as a sum of consecutive naturals, for example, 32707 + ... + 32743.

It is an arithmetic number, because the mean of its divisors is an integer number (42408).

2^1210825 is an apocalyptic number.

It is an amenable number.

1210825 is a deficient number, since it is larger than the sum of its proper divisors (824759).

1210825 is a wasteful number, since it uses less digits than its factorization.

1210825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 77 counting only the distinct ones).

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

The square root of 1210825 is about 1100.3749361013. The cubic root of 1210825 is about 106.5844364073.

Adding to 1210825 its reverse (5280121), we get a palindrome (6490946).

The spelling of 1210825 in words is "one million, two hundred ten thousand, eight hundred twenty-five".