1214815285 has 8 divisors (see below), whose sum is σ = 1458450360. Its totient is φ = 971404224.

The previous prime is 1214815267. The next prime is 1214815309. The reversal of 1214815285 is 5825184121.

It can be written as a sum of positive squares in 4 ways, for example, as 508637809 + 706177476 = 22553^2 + 26574^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1214815285 - 2¹⁷ = 1214684213 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 43830 + ... + 65959.

It is an arithmetic number, because the mean of its divisors is an integer number (182306295).

Almost surely, 2^1214815285 is an apocalyptic number.

It is an amenable number.

1214815285 is a deficient number, since it is larger than the sum of its proper divisors (243635075).

1214815285 is a wasteful number, since it uses less digits than its factorization.

1214815285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112007.

The product of its digits is 25600, while the sum is 37.

The square root of 1214815285 is about 34854.2003924922. The cubic root of 1214815285 is about 1067.0139135820.

The spelling of 1214815285 in words is "one billion, two hundred fourteen million, eight hundred fifteen thousand, two hundred eighty-five".