142420310 has 8 divisors (see below), whose sum is σ = 256356576. Its totient is φ = 56968120.

The previous prime is 142420303. The next prime is 142420319. The reversal of 142420310 is 13024241.

142420310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×142420310² = 40567089400992200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142420319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7121006 + ... + 7121025.

It is an arithmetic number, because the mean of its divisors is an integer number (32044572).

Almost surely, 2^142420310 is an apocalyptic number.

142420310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142420310 is a deficient number, since it is larger than the sum of its proper divisors (113936266).

142420310 is a wasteful number, since it uses less digits than its factorization.

142420310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14242038.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142420310 is about 11933.9980727332. The cubic root of 142420310 is about 522.2245795544.

Adding to 142420310 its reverse (13024241), we get a palindrome (155444551).

The spelling of 142420310 in words is "one hundred forty-two million, four hundred twenty thousand, three hundred ten".