1242143232 has 80 divisors (see below), whose sum is σ = 3610027872. Its totient is φ = 376401920.

The previous prime is 1242143209. The next prime is 1242143251. The reversal of 1242143232 is 2323412421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19863 + ... + 53654.

Almost surely, 2^1242143232 is an apocalyptic number.

1242143232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242143232 is an abundant number, since it is smaller than the sum of its proper divisors (2367884640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242143232 is an equidigital number, since it uses as much as digits as its factorization.

1242143232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73549 (or 73533 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 1242143232 is about 35244.0524344179. The cubic root of 1242143232 is about 1074.9556807400.

Adding to 1242143232 its reverse (2323412421), we get a palindrome (3565555653).

The spelling of 1242143232 in words is "one billion, two hundred forty-two million, one hundred forty-three thousand, two hundred thirty-two".