1284364225 has 24 divisors (see below), whose sum is σ = 1617436160. Its totient is φ = 1011553920.

The previous prime is 1284364219. The next prime is 1284364243. The reversal of 1284364225 is 5224634821.

It is not a de Polignac number, because 1284364225 - 2⁹ = 1284363713 is a prime.

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, 901864 + ... + 903286.

Almost surely, 2^1284364225 is an apocalyptic number.

It is an amenable number.

1284364225 is a deficient number, since it is larger than the sum of its proper divisors (333071935).

1284364225 is a wasteful number, since it uses less digits than its factorization.

1284364225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969 (or 1964 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 1284364225 is about 35838.0276382504. The cubic root of 1284364225 is about 1086.9996394623. Note that the first 3 decimals are identical.

The spelling of 1284364225 in words is "one billion, two hundred eighty-four million, three hundred sixty-four thousand, two hundred twenty-five".