1213383139 has 8 divisors (see below), whose sum is σ = 1222383600. Its totient is φ = 1204394400.

The previous prime is 1213383131. The next prime is 1213383169. The reversal of 1213383139 is 9313833121.

It is a happy number.

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 1213383139 - 2³ = 1213383131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213383131) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 406924 + ... + 409894.

It is an arithmetic number, because the mean of its divisors is an integer number (152797950).

Almost surely, 2^1213383139 is an apocalyptic number.

1213383139 is a deficient number, since it is larger than the sum of its proper divisors (9000461).

1213383139 is a wasteful number, since it uses less digits than its factorization.

1213383139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861.

The product of its digits is 11664, while the sum is 34.

The square root of 1213383139 is about 34833.6495216909. The cubic root of 1213383139 is about 1066.5944477255.

The spelling of 1213383139 in words is "one billion, two hundred thirteen million, three hundred eighty-three thousand, one hundred thirty-nine".