1142404105 has 8 divisors (see below), whose sum is σ = 1418157000. Its totient is φ = 882408576.

The previous prime is 1142404103. The next prime is 1142404111. The reversal of 1142404105 is 5014042411.

It can be written as a sum of positive squares in 4 ways, for example, as 240963529 + 901440576 = 15523^2 + 30024^2 .

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 1142404105 - 2¹ = 1142404103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142404103) 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, 3939180 + ... + 3939469.

It is an arithmetic number, because the mean of its divisors is an integer number (177269625).

Almost surely, 2^1142404105 is an apocalyptic number.

It is an amenable number.

1142404105 is a deficient number, since it is larger than the sum of its proper divisors (275752895).

1142404105 is an equidigital number, since it uses as much as digits as its factorization.

1142404105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7878683.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1142404105 is about 33799.4690047048. The cubic root of 1142404105 is about 1045.3777485560.

Adding to 1142404105 its reverse (5014042411), we get a palindrome (6156446516).

The spelling of 1142404105 in words is "one billion, one hundred forty-two million, four hundred four thousand, one hundred five".