1214405225 has 24 divisors (see below), whose sum is σ = 1650623520. Its totient is φ = 878976000.

The previous prime is 1214405219. The next prime is 1214405243. The reversal of 1214405225 is 5225044121.

It is not a de Polignac number, because 1214405225 - 2²⁰ = 1213356649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1214405194 and 1214405203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47561 + ... + 68489.

It is an arithmetic number, because the mean of its divisors is an integer number (68775980).

Almost surely, 2^1214405225 is an apocalyptic number.

It is an amenable number.

1214405225 is a deficient number, since it is larger than the sum of its proper divisors (436218295).

1214405225 is a wasteful number, since it uses less digits than its factorization.

1214405225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21161 (or 21156 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1214405225 is about 34848.3173912314. The cubic root of 1214405225 is about 1066.8938434857.

Adding to 1214405225 its reverse (5225044121), we get a palindrome (6439449346).

The spelling of 1214405225 in words is "one billion, two hundred fourteen million, four hundred five thousand, two hundred twenty-five".