1142040241 has 4 divisors (see below), whose sum is σ = 1143117684. Its totient is φ = 1140962800.

The previous prime is 1142040233. The next prime is 1142040247. The reversal of 1142040241 is 1420402411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 973689616 + 168350625 = 31204^2 + 12975^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142040241 - 2³ = 1142040233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142040247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537130 + ... + 539251.

It is an arithmetic number, because the mean of its divisors is an integer number (285779421).

Almost surely, 2^1142040241 is an apocalyptic number.

It is an amenable number.

1142040241 is a deficient number, since it is larger than the sum of its proper divisors (1077443).

1142040241 is a wasteful number, since it uses less digits than its factorization.

1142040241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077442.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1142040241 is about 33794.0858879183. The cubic root of 1142040241 is about 1045.2667499701.

Adding to 1142040241 its reverse (1420402411), we get a palindrome (2562442652).

The spelling of 1142040241 in words is "one billion, one hundred forty-two million, forty thousand, two hundred forty-one".