142401244 has 12 divisors (see below), whose sum is σ = 251408304. Its totient is φ = 70570304.

The previous prime is 142401229. The next prime is 142401263. The reversal of 142401244 is 442104241.

142401244 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142401244² = 40556228585495072, which contains 22 as substring.

142401244 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157072 + ... + 157975.

It is an arithmetic number, because the mean of its divisors is an integer number (20950692).

Almost surely, 2^142401244 is an apocalyptic number.

It is an amenable number.

142401244 is a deficient number, since it is larger than the sum of its proper divisors (109007060).

142401244 is a wasteful number, since it uses less digits than its factorization.

142401244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315164 (or 315162 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 142401244 is about 11933.1992357456. The cubic root of 142401244 is about 522.2012748770.

Adding to 142401244 its reverse (442104241), we get a palindrome (584505485).

The spelling of 142401244 in words is "one hundred forty-two million, four hundred one thousand, two hundred forty-four".