1219853005 has 16 divisors (see below), whose sum is σ = 1685718144. Its totient is φ = 830082240.

The previous prime is 1219852981. The next prime is 1219853009. The reversal of 1219853005 is 5003589121.

It is not a de Polignac number, because 1219853005 - 2²⁹ = 682982093 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 (1219853009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128442 + ... + 137611.

It is an arithmetic number, because the mean of its divisors is an integer number (105357384).

Almost surely, 2^1219853005 is an apocalyptic number.

It is an amenable number.

1219853005 is a deficient number, since it is larger than the sum of its proper divisors (465865139).

1219853005 is a wasteful number, since it uses less digits than its factorization.

1219853005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266196.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1219853005 is about 34926.3941024550. The cubic root of 1219853005 is about 1068.4868135269.

The spelling of 1219853005 in words is "one billion, two hundred nineteen million, eight hundred fifty-three thousand, five".