1142352305 has 4 divisors (see below), whose sum is σ = 1370822772. Its totient is φ = 913881840.

The previous prime is 1142352287. The next prime is 1142352313. The reversal of 1142352305 is 5032532411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5032532411 = 23 ⋅218805757.

It can be written as a sum of positive squares in 2 ways, for example, as 781314304 + 361038001 = 27952^2 + 19001^2 .

It is not a de Polignac number, because 1142352305 - 2⁶ = 1142352241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114235226 + ... + 114235235.

It is an arithmetic number, because the mean of its divisors is an integer number (342705693).

Almost surely, 2^1142352305 is an apocalyptic number.

It is an amenable number.

1142352305 is a deficient number, since it is larger than the sum of its proper divisors (228470467).

1142352305 is an equidigital number, since it uses as much as digits as its factorization.

1142352305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228470466.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1142352305 is about 33798.7027117906. The cubic root of 1142352305 is about 1045.3619481384.

Adding to 1142352305 its reverse (5032532411), we get a palindrome (6174884716).

The spelling of 1142352305 in words is "one billion, one hundred forty-two million, three hundred fifty-two thousand, three hundred five".