1214676209 has 6 divisors (see below), whose sum is σ = 1244531106. Its totient is φ = 1184832240.

The previous prime is 1214676191. The next prime is 1214676233. The reversal of 1214676209 is 9026764121.

It can be written as a sum of positive squares in only one way, i.e., 740656225 + 474019984 = 27215^2 + 21772^2 .

It is not a de Polignac number, because 1214676209 - 2⁸ = 1214675953 is a prime.

It is a super-2 number, since 2×1214676209² = 2950876585421223362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214676269) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220442 + ... + 225884.

It is an arithmetic number, because the mean of its divisors is an integer number (207421851).

Almost surely, 2^1214676209 is an apocalyptic number.

It is an amenable number.

1214676209 is a deficient number, since it is larger than the sum of its proper divisors (29854897).

1214676209 is an frugal number, since it uses more digits than its factorization.

1214676209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10927 (or 5484 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1214676209 is about 34852.2052243470. The cubic root of 1214676209 is about 1066.9731936218.

The spelling of 1214676209 in words is "one billion, two hundred fourteen million, six hundred seventy-six thousand, two hundred nine".