1212425 has 6 divisors (see below), whose sum is σ = 1503438. Its totient is φ = 969920.

The previous prime is 1212401. The next prime is 1212427. The reversal of 1212425 is 5242121.

It can be written as a sum of positive squares in 3 ways, for example, as 4624 + 1207801 = 68^2 + 1099^2 .

It is not a de Polignac number, because 1212425 - 2⁶ = 1212361 is a prime.

It is a d-powerful number, because it can be written as 1 + 2 + 1 + 2¹⁵ + 4¹⁰ + 2¹⁷ + 5 .

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1212427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24224 + ... + 24273.

It is an arithmetic number, because the mean of its divisors is an integer number (250573).

2^1212425 is an apocalyptic number.

It is an amenable number.

1212425 is a deficient number, since it is larger than the sum of its proper divisors (291013).

1212425 is an equidigital number, since it uses as much as digits as its factorization.

1212425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48507 (or 48502 counting only the distinct ones).

The product of its digits is 160, while the sum is 17.

The square root of 1212425 is about 1101.1017210049. The cubic root of 1212425 is about 106.6313630998.

Adding to 1212425 its reverse (5242121), we get a palindrome (6454546).

The spelling of 1212425 in words is "one million, two hundred twelve thousand, four hundred twenty-five".