1214249585 has 4 divisors (see below), whose sum is σ = 1457099508. Its totient is φ = 971399664.

The previous prime is 1214249581. The next prime is 1214249639. The reversal of 1214249585 is 5859424121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5859424121 = 11299 ⋅518579.

It can be written as a sum of positive squares in 2 ways, for example, as 378808369 + 835441216 = 19463^2 + 28904^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214249585 - 2² = 1214249581 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214249581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121424954 + ... + 121424963.

It is an arithmetic number, because the mean of its divisors is an integer number (364274877).

Almost surely, 2^1214249585 is an apocalyptic number.

It is an amenable number.

1214249585 is a deficient number, since it is larger than the sum of its proper divisors (242849923).

1214249585 is an equidigital number, since it uses as much as digits as its factorization.

1214249585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242849922.

The product of its digits is 115200, while the sum is 41.

The square root of 1214249585 is about 34846.0842132943. The cubic root of 1214249585 is about 1066.8482632986.

The spelling of 1214249585 in words is "one billion, two hundred fourteen million, two hundred forty-nine thousand, five hundred eighty-five".