142343120 has 20 divisors (see below), whose sum is σ = 330947940. Its totient is φ = 56937216.

The previous prime is 142343111. The next prime is 142343147. The reversal of 142343120 is 21343241.

It can be written as a sum of positive squares in 2 ways, for example, as 74511424 + 67831696 = 8632^2 + 8236^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×142343120² = 40523127622668800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 142343092 and 142343101.

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, 889565 + ... + 889724.

It is an arithmetic number, because the mean of its divisors is an integer number (16547397).

Almost surely, 2^142343120 is an apocalyptic number.

142343120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142343120 is an abundant number, since it is smaller than the sum of its proper divisors (188604820).

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

142343120 is a wasteful number, since it uses less digits than its factorization.

142343120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779302 (or 1779296 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142343120 is about 11930.7635966857. The cubic root of 142343120 is about 522.1302161403.

Adding to 142343120 its reverse (21343241), we get a palindrome (163686361).

The spelling of 142343120 in words is "one hundred forty-two million, three hundred forty-three thousand, one hundred twenty".