142144430 has 16 divisors (see below), whose sum is σ = 256360464. Its totient is φ = 56746560.

The previous prime is 142144427. The next prime is 142144441. The reversal of 142144430 is 34441241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 142144396 and 142144405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8432 + ... + 18851.

It is an arithmetic number, because the mean of its divisors is an integer number (16022529).

Almost surely, 2^142144430 is an apocalyptic number.

142144430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142144430 is a deficient number, since it is larger than the sum of its proper divisors (114216034).

142144430 is a wasteful number, since it uses less digits than its factorization.

142144430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27811.

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

The square root of 142144430 is about 11922.4338958117. The cubic root of 142144430 is about 521.8871640943.

Adding to 142144430 its reverse (34441241), we get a palindrome (176585671).

The spelling of 142144430 in words is "one hundred forty-two million, one hundred forty-four thousand, four hundred thirty".