142021310 has 16 divisors (see below), whose sum is σ = 261078336. Its totient is φ = 55599648.

The previous prime is 142021301. The next prime is 142021331. The reversal of 142021310 is 13120241.

142021310 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142021310² = 40340104988232200, which contains 22 as substring.

It is a Curzon number.

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, 150617 + ... + 151556.

It is an arithmetic number, because the mean of its divisors is an integer number (16317396).

Almost surely, 2^142021310 is an apocalyptic number.

142021310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142021310 is a deficient number, since it is larger than the sum of its proper divisors (119057026).

142021310 is a wasteful number, since it uses less digits than its factorization.

142021310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302227.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 142021310 is about 11917.2694020065. The cubic root of 142021310 is about 521.7364410862.

Adding to 142021310 its reverse (13120241), we get a palindrome (155141551).

The spelling of 142021310 in words is "one hundred forty-two million, twenty-one thousand, three hundred ten".