1142244213 has 32 divisors (see below), whose sum is σ = 1696989312. Its totient is φ = 677606400.

The previous prime is 1142244211. The next prime is 1142244227. The reversal of 1142244213 is 3124422411.

It is not a de Polignac number, because 1142244213 - 2¹ = 1142244211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142244211) 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 31 ways as a sum of consecutive naturals, for example, 328303 + ... + 331763.

It is an arithmetic number, because the mean of its divisors is an integer number (53030916).

Almost surely, 2^1142244213 is an apocalyptic number.

It is an amenable number.

1142244213 is a deficient number, since it is larger than the sum of its proper divisors (554745099).

1142244213 is a wasteful number, since it uses less digits than its factorization.

1142244213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685.

The product of its digits is 1536, while the sum is 24.

The square root of 1142244213 is about 33797.1036185055. The cubic root of 1142244213 is about 1045.3289755818.

Adding to 1142244213 its reverse (3124422411), we get a palindrome (4266666624).

It can be divided in two parts, 11 and 42244213, that added together give a palindrome (42244224).

The spelling of 1142244213 in words is "one billion, one hundred forty-two million, two hundred forty-four thousand, two hundred thirteen".