142910643 has 8 divisors (see below), whose sum is σ = 190688400. Its totient is φ = 95203328.

The previous prime is 142910639. The next prime is 142910683. The reversal of 142910643 is 346019241.

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

It is a cyclic number.

It is not a de Polignac number, because 142910643 - 2² = 142910639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142910643.

It is not an unprimeable number, because it can be changed into a prime (142910623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12678 + ... + 21131.

It is an arithmetic number, because the mean of its divisors is an integer number (23836050).

Almost surely, 2^142910643 is an apocalyptic number.

142910643 is a deficient number, since it is larger than the sum of its proper divisors (47777757).

142910643 is a wasteful number, since it uses less digits than its factorization.

142910643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35221.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 142910643 is about 11954.5239553903. The cubic root of 142910643 is about 522.8232082228.

Adding to 142910643 its reverse (346019241), we get a palindrome (488929884).

The spelling of 142910643 in words is "one hundred forty-two million, nine hundred ten thousand, six hundred forty-three".