1213500214 has 4 divisors (see below), whose sum is σ = 1820250324. Its totient is φ = 606750106.

The previous prime is 1213500199. The next prime is 1213500221. The reversal of 1213500214 is 4120053121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4120053121 = 317 ⋅12997013.

It is a junction number, because it is equal to n+sod(n) for n = 1213500191 and 1213500200.

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 as a sum of consecutive naturals, namely, 303375052 + ... + 303375055.

It is an arithmetic number, because the mean of its divisors is an integer number (455062581).

Almost surely, 2^1213500214 is an apocalyptic number.

1213500214 is a deficient number, since it is larger than the sum of its proper divisors (606750110).

1213500214 is an equidigital number, since it uses as much as digits as its factorization.

1213500214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606750109.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1213500214 is about 34835.3299682951. The cubic root of 1213500214 is about 1066.6287505837.

Adding to 1213500214 its reverse (4120053121), we get a palindrome (5333553335).

The spelling of 1213500214 in words is "one billion, two hundred thirteen million, five hundred thousand, two hundred fourteen".