1214090305 has 8 divisors (see below), whose sum is σ = 1520252352. Its totient is φ = 929042928.

The previous prime is 1214090303. The next prime is 1214090327. The reversal of 1214090305 is 5030904121.

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 1214090305 - 2¹ = 1214090303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214090305.

It is not an unprimeable number, because it can be changed into a prime (1214090303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5278539 + ... + 5278768.

It is an arithmetic number, because the mean of its divisors is an integer number (190031544).

Almost surely, 2^1214090305 is an apocalyptic number.

It is an amenable number.

1214090305 is a deficient number, since it is larger than the sum of its proper divisors (306162047).

1214090305 is a wasteful number, since it uses less digits than its factorization.

1214090305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10557335.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1214090305 is about 34843.7986591588. The cubic root of 1214090305 is about 1066.8016130810.

Adding to 1214090305 its reverse (5030904121), we get a palindrome (6244994426).

The spelling of 1214090305 in words is "one billion, two hundred fourteen million, ninety thousand, three hundred five".