1242032143 has 8 divisors (see below), whose sum is σ = 1398652416. Its totient is φ = 1092696600.

The previous prime is 1242032119. The next prime is 1242032149. The reversal of 1242032143 is 3412302421.

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 1242032143 - 2⁵ = 1242032111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242032149) 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, 1820821 + ... + 1821502.

It is an arithmetic number, because the mean of its divisors is an integer number (174831552).

Almost surely, 2^1242032143 is an apocalyptic number.

1242032143 is a deficient number, since it is larger than the sum of its proper divisors (156620273).

1242032143 is a wasteful number, since it uses less digits than its factorization.

1242032143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642365.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1242032143 is about 35242.4764027728. The cubic root of 1242032143 is about 1074.9236341642.

Adding to 1242032143 its reverse (3412302421), we get a palindrome (4654334564).

The spelling of 1242032143 in words is "one billion, two hundred forty-two million, thirty-two thousand, one hundred forty-three".