142504643 has 8 divisors (see below), whose sum is σ = 146966400. Its totient is φ = 138089920.

The previous prime is 142504631. The next prime is 142504657. The reversal of 142504643 is 346405241.

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 142504643 - 2¹⁰ = 142503619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142504603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5555 + ... + 17772.

It is an arithmetic number, because the mean of its divisors is an integer number (18370800).

Almost surely, 2^142504643 is an apocalyptic number.

142504643 is a deficient number, since it is larger than the sum of its proper divisors (4461757).

142504643 is a wasteful number, since it uses less digits than its factorization.

142504643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23517.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 142504643 is about 11937.5308585989. The cubic root of 142504643 is about 522.3276361937.

Adding to 142504643 its reverse (346405241), we get a palindrome (488909884).

The spelling of 142504643 in words is "one hundred forty-two million, five hundred four thousand, six hundred forty-three".