142443100 has 18 divisors (see below), whose sum is σ = 309101744. Its totient is φ = 56977200.

The previous prime is 142443097. The next prime is 142443101. The reversal of 142443100 is 1344241.

It is a super-2 number, since 2×142443100² = 40580073475220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142443101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 712116 + ... + 712315.

Almost surely, 2^142443100 is an apocalyptic number.

142443100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142443100 is an abundant number, since it is smaller than the sum of its proper divisors (166658644).

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

142443100 is a wasteful number, since it uses less digits than its factorization.

142443100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424445 (or 1424438 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142443100 is about 11934.9528696179. The cubic root of 142443100 is about 522.2524334081.

Adding to 142443100 its reverse (1344241), we get a palindrome (143787341).

The spelling of 142443100 in words is "one hundred forty-two million, four hundred forty-three thousand, one hundred".