142143404 has 48 divisors (see below), whose sum is σ = 281684928. Its totient is φ = 62270208.

The previous prime is 142143377. The next prime is 142143431. The reversal of 142143404 is 404341241.

It is a happy number.

142143404 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 an interprime number because it is at equal distance from previous prime (142143377) and next prime (142143431).

It is a Harshad number since it is a multiple of its sum of digits (23).

142143404 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 142143404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187394 + ... + 188150.

It is an arithmetic number, because the mean of its divisors is an integer number (5868436).

Almost surely, 2^142143404 is an apocalyptic number.

It is an amenable number.

142143404 is a deficient number, since it is larger than the sum of its proper divisors (139541524).

142143404 is a wasteful number, since it uses less digits than its factorization.

142143404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 142143404 is about 11922.3908676071. The cubic root of 142143404 is about 521.8859084289.

Adding to 142143404 its reverse (404341241), we get a palindrome (546484645).

The spelling of 142143404 in words is "one hundred forty-two million, one hundred forty-three thousand, four hundred four".