142144450 has 48 divisors (see below), whose sum is σ = 308623104. Its totient is φ = 47692800.

The previous prime is 142144447. The next prime is 142144459. The reversal of 142144450 is 54441241.

142144450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (142144459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12130 + ... + 20770.

It is an arithmetic number, because the mean of its divisors is an integer number (6429648).

Almost surely, 2^142144450 is an apocalyptic number.

142144450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142144450 is an abundant number, since it is smaller than the sum of its proper divisors (166478654).

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

142144450 is a wasteful number, since it uses less digits than its factorization.

142144450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8707 (or 8702 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 142144450 is about 11922.4347345666. The cubic root of 142144450 is about 521.8871885712.

Adding to 142144450 its reverse (54441241), we get a palindrome (196585691).

The spelling of 142144450 in words is "one hundred forty-two million, one hundred forty-four thousand, four hundred fifty".