1213334549 has 8 divisors (see below), whose sum is σ = 1406199168. Its totient is φ = 1025352720.

The previous prime is 1213334539. The next prime is 1213334579. The reversal of 1213334549 is 9454333121.

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

It is not a de Polignac number, because 1213334549 - 2²⁰ = 1212285973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213334519) 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, 1220162 + ... + 1221155.

It is an arithmetic number, because the mean of its divisors is an integer number (175774896).

Almost surely, 2^1213334549 is an apocalyptic number.

It is an amenable number.

1213334549 is a deficient number, since it is larger than the sum of its proper divisors (192864619).

1213334549 is an equidigital number, since it uses as much as digits as its factorization.

1213334549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441395.

The product of its digits is 38880, while the sum is 35.

The square root of 1213334549 is about 34832.9520569245. The cubic root of 1213334549 is about 1066.5802102561.

The spelling of 1213334549 in words is "one billion, two hundred thirteen million, three hundred thirty-four thousand, five hundred forty-nine".