1142241243 has 16 divisors (see below), whose sum is σ = 1789245696. Its totient is φ = 639015840.

The previous prime is 1142241227. The next prime is 1142241277. The reversal of 1142241243 is 3421422411.

It is not a de Polignac number, because 1142241243 - 2⁴ = 1142241227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142241223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330855 + ... + 1331712.

It is an arithmetic number, because the mean of its divisors is an integer number (111827856).

Almost surely, 2^1142241243 is an apocalyptic number.

1142241243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1142241243 is a deficient number, since it is larger than the sum of its proper divisors (647004453).

1142241243 is a wasteful number, since it uses less digits than its factorization.

1142241243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662594.

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

The square root of 1142241243 is about 33797.0596798005. The cubic root of 1142241243 is about 1045.3280695789.

Adding to 1142241243 its reverse (3421422411), we get a palindrome (4563663654).

The spelling of 1142241243 in words is "one billion, one hundred forty-two million, two hundred forty-one thousand, two hundred forty-three".