142344747 has 12 divisors (see below), whose sum is σ = 206132160. Its totient is φ = 94655088.

The previous prime is 142344739. The next prime is 142344767. The reversal of 142344747 is 747443241.

It is a happy number.

It is not a de Polignac number, because 142344747 - 2³ = 142344739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142344707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16347 + ... + 23492.

It is an arithmetic number, because the mean of its divisors is an integer number (17177680).

Almost surely, 2^142344747 is an apocalyptic number.

142344747 is a deficient number, since it is larger than the sum of its proper divisors (63787413).

142344747 is a wasteful number, since it uses less digits than its factorization.

142344747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40242 (or 40239 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 142344747 is about 11930.8317815649. The cubic root of 142344747 is about 522.1322054710.

Adding to 142344747 its reverse (747443241), we get a palindrome (889787988).

It can be divided in two parts, 14234 and 4747, that added together give a palindrome (18981).

The spelling of 142344747 in words is "one hundred forty-two million, three hundred forty-four thousand, seven hundred forty-seven".